When Marvel Comics first announced its plans for two new X-Men team titles, the makeup of the upcoming Blue and Gold squads remained a secret.

Now, Marvel has unveiled the teams for "X-Men Blue" and "X-Men Gold" -- both the characters and creators involved -- and the revelations should make longtime X-fans very happy.

RELATED: X-Men Team History: Follow The Road To Blue & Gold

Announced via IGN, "X-Men Gold," written by Marc Guggenheim with art by Ardian Syaf, will star Storm, Colossus, Nightcrawler, Old Man Logan and Rachel Grey, with Kitty Pryde as team leader.

Yes, Kitty will no longer be a member of the Guardians of the Galaxy. Guggenheim explained to IGN that the ever-popular character is returning home where she'll lead her new team in a battle with a new incarnation of the Brotherhood of Evil Mutants.

“There's more going on here than just another new Brotherhood of Evil Mutants, the umpteenth iteration," the writer says. "One of the things that I wanted to get back to and really sort of drill down is what does it mean to be a mutant in the 21st century, in a world where you've got Inhumans and you've had mutants for all this time and you've had M-Pox and Genosha and all the things that have happened to mutants throughout the years. Why does this racism still exist? In fact, the very first page sort of sets out my anti-mutant treatise. I really tried to put on my racism hat and justify hatred of mutants for the 21st century. And the brotherhood really plays into that."

X-Men Gold teaser art by Ardian Syaf
"X-Men Gold" teaser art by Ardian Syaf

"X-Men Blue," written by Cullen Bunn with art by Jorge Molina, stars the time-tossed team of Cyclops, Iceman, Beast and Angel, with Magneto as their mentor-figure. Jean Grey will be present as well, but in "Blue," she's taking on the mantle of leader for the first time.

"Magneto is the oldest enemy of these X-Men. This was the first ‘evil mutant’ that they battled way back in X-Men #1. And now here he is taking on this mentor role with them,” Bunn told IGN. “That immediately raises a lot of questions. Why would these X-Men be working with him? What is he trying to accomplish now? Do they feel that he's changed his ways? And that really is what I was excited about. It opened up a lot of really interesting questions for us. There's some mystery involved in terms of why the X-Men are working with him and what they're trying to accomplish. There's a little bit of intrigue there because knowing Magneto, you know he's got ulterior motives. He's Magneto. The original five X-Men aren't stupid. They know this. And maybe they have some ulterior motives of their own."

As for Jean's new position as team leader, Bunn explained to IGN, "Jean is really the catalyst for bringing them all together... I kind of feel like readers of X-Men have always felt that Jean was supposed to be the leader of the team. And now Jean is definitely taking the leadership role in this group."

Both series will ship twice-monthly, meaning X-Men readers will be treated to four issues per month between the titles. "X-Men Blue" and "X-Men Gold" debut in April 2017 as part of Marvel's ongoing ResurrXion initiative.

X-Men Blue teaser art by Arthur Adams
X-Men Blue teaser art by Arthur Adams

The first incarnation of the Blue team debuted in 1991’s “X-Men” #1 and starred Cyclops, Rogue, Gambit, Wolverine, Beast, Psylocke and Jubilee. The Gold team arrived that same month in “Uncanny X-Men” #281 and consisted of Storm, Jean Grey, Archangel, Iceman, Colossus and Bishop. The Blue/Gold dynamic lasted for a couple of years, until a point in the mid-’90s when both teams subtly merged and all X-Men started appearing in both team books.