This morning, The CW formally announced the pickup of "DC's Legends of Tomorrow" as a midseason series, and gave full season renewals to "Arrow," "The Flash" and "iZombie" as expected. However, those who were hoping to see a fifth DC Comics/Vertigo-based series as part of today's up-fronts announcements were left disappointed as "Constantine," officially canceled last week by NBC, was not among the show's making up the 2015-16 schedule.

CW's "Legends of Tomorrow" Synopsis Reveals Caity Lotz's Character

Last night, "Constantine" creator Daniel Cerone steeled the show's fans for the disappointing news via Twitter, stating, "Despite ongoing talks I'm told things are not looking up for #Constantine at CW. Don't have details. Feeling wrecked about it." The tweet was deleted shortly before this story was published.

While disappointing to fans, the possibility remains that actor Matt Ryan's incarnation of John Constantine will appear once again. No less than "Arrow" Executive Producer Marc Guggeneheim has gone on record with his interest in having the trenchcoated mage appear in Starling City -- though he does caution that wanting something to happen and making it happen aren't always the same thing.

"It would be wonderful and we certainly have a million ideas -- it's hard for me to say mainly because A: it's not my decision to make and B: with 'Constantine' being shopped around to other networks... it's really hard to make plans when a show's kind of in limbo," Guggenheim said in a recent interview with Variety. He added that "a lot of the pieces are in place, except for that one final piece, which is: what's the fate of 'Constantine'? That's the tricky thing. But it comes up in the writers' room constantly -- we have a number of ideas, one idea that's particularly exciting to me. We're in a little bit of a wait-and-see mode, like you guys are."

Check out the complete 2015-16 season synopses and scheduling for "Arrow," "The Flash," "iZombie" and "DC's Legends of Tomorrow" below.

TUESDAY

8:00-9:00 P.M.

"THE FLASH"

Until recently, 25-year-old Barry Allen (Grant Gustin) lived a normal life as a perpetually tardy C.S.I. in the Central City Police department. Barry is secretly in love with his best friend, Iris West (Candice Patton), daughter of Barry's surrogate father, Detective Joe West (Jesse L. Martin). Joe adopted Barry fourteen years ago after Barry's mother was murdered and Barry's father, Henry Allen, received a life sentence for the crime - though Barry maintains that a mysterious "Man in Yellow" was responsible. Nine months ago, the S.T.A.R. Labs Particle Accelerator exploded, creating a dark matter lightning storm that struck Barry - bestowing him with super-speed and making him the fastest man alive. But Barry wasn't the only person who was given extraordinary abilities that night. The dark matter also created meta-humans, many of whom have wreaked havoc on the city. With the help of his new scientist friends at S.T.A.R Labs, Caitlin Snow (Danielle Panabaker), Cisco Ramon (Carlos Valdes), and Dr. Harrison Wells (Tom Cavanaugh), Barry begins a journey as The Flash to protect the people of Central City from these powerful new threats. However, Barry's mission gets sidetracked when he comes face to face with the Man in Yellow. Barry isn't fast enough to catch him but in a shocking revelation the team figures out their beloved mentor, Harrison Wells, is in fact the Man in Yellow and the man responsible for killing Barry's mother. Harrison Wells reveals his true identity as Eobard Thawne, a man from the future who traveled back in time to kill Barry. When Barry is finally forced to confront Wells, will he be fast enough to catch him? Or will Wells be successful in killing Barry and returning home to the future? Based on the characters from DC Comics, THE FLASH is from by Bonanza Productions Inc. in association with Berlanti Productions and Warner Bros. Television, with executive producers Greg Berlanti ("Arrow," upcoming "Pan"), Andrew Kreisberg ("Arrow," "Eli Stone"), David Nutter ("Arrow," "Game of Thrones") and Sarah Schechter ("Arrow," upcoming "Pan").

9:00-10:00 P.M.

"IZOMBIE"

Throughout the riveting first season of iZombie, television's only zom-dram-rom-com, Liv Moore (Rose McIver) learned to embrace her undead life and use her zombie powers for good. As an intrepid, zombified medical examiner, Liv ate the brains of the morgue cadavers and, under the guise of being a psychic, used her visions to assist Detective Clive Babinaux (Malcolm Goodwin) in solving murder cases. While Liv's boss and sole confidante, Dr. Ravi Chakrabarti (Rahul Kohli), worked on a cure for her unthinkable condition, Liv battled the evil, zombie-making, brain-dealing Blaine (David Anders) and struggled to protect her loved ones and all of Seattle from a potential zombie apocalypse. Standing directly and unwittingly in the path of the oncoming zombie train is Liv's ex-fiancee Major Lilywhite (Robert Buckley), whose life spiraled out of control when he began investigating forces beyond his understanding. In our final episodes of the debut season, those closest to Liv are thrust into mortal danger and Liv will be forced to make the ultimate sacrifice to save them. There will be heartbreaking consequences and as the dust settles we'll see that nothing in Liv's partially dead life will ever be the same. In season two, Liv will face new and even more powerful enemies and old enemies in surprising new forms. Unlikely alliances will be struck, relationships will be challenged, and the line between good and evil will blur for both zombies and the fully living. Based upon characters created by Chris Roberson and Michael Allred, and published by DC Entertainment's Vertigo imprint, iZOMBIE is from Bonanza Productions Inc. in association with Spondoolie Productions and Warner Bros. Television.

WEDNESDAY

8:00-9:00 P.M.

"ARROW"

After a violent shipwreck, billionaire playboy Oliver Queen (Stephen Amell) was missing and presumed dead for five years before being discovered alive on a remote island in the Pacific. He returned home to Starling City, bent on righting the wrongs of his family and fighting injustice. To do this, he created the persona of the Arrow and allied himself with former military man John Diggle (David Ramsey), computer-science expert Felicity Smoak (Emily Bett Rickards), billionaire inventor Ray Palmer (Brandon Routh), lawyer-turned-vigilante Laurel Lance (Katie Cassidy), and his sister Thea (Willa Holland). Uneasy alliances and rivalries will shift as Oliver faces his most difficult challenge yet. Based on the characters from DC Comics, ARROW is from Bonanza Productions Inc. in association with Berlanti Productions and Warner Bros. Television, with executive producers Greg Berlanti ("The Flash," upcoming "Pan"), Marc Guggenheim ("Eli Stone," "Percy Jackson: Sea of Monsters"), Andrew Kreisberg ("The Flash," "Eli Stone," "Warehouse 13") and Sarah Schechter ("The Flash," upcoming "Pan").

MIDSEASON

"DC'S LEGENDS OF TOMORROW"

When heroes alone are not enough... the world needs legends. Having seen the future, one he will desperately try to prevent from happening, time-traveling rogue Rip Hunter is tasked with assembling a disparate group of both heroes and villains to confront an unstoppable threat - one in which not only is the planet at stake, but all of time itself. Can this ragtag team defeat an immortal threat unlike anything they have ever known? DC'S LEGENDS OF TOMORROW stars Victor Garber ("The Flash," "Alias"); Brandon Routh ("Arrow," "Superman Returns"); Arthur Darvill ("Doctor Who"); Caity Lotz ("Arrow"); Ciarra Renee ("Pippin"); Franz Drameh ("Edge of Tomorrow"); with Dominic Purcell ("The Flash," "Prison Break"); and Wentworth Miller ("The Flash," "Prison Break"). Based on the characters from DC Comics, DC'S LEGENDS OF TOMORROW is from Bonanza Productions Inc. in association with Berlanti Productions and Warner Bros. Television, with executive producers Greg Berlanti ("Arrow," "The Flash," upcoming "Pan"), Marc Guggenheim ("Arrow," "Eli Stone," "Percy Jackson: Sea of Monsters"), Andrew Kreisberg ("Arrow," "The Flash," "Eli Stone," "Warehouse 13") and Sarah Schechter ("Arrow," "The Flash," upcoming "Pan").