Could Lucifer Join Constantine in the CW's Arrowverse?

News that Fox's fan-favorite DC/Vertigo television series Lucifer had been cancelled was shocking, to say the least. The announcement was met with vocal outcry from fans to the character's co-creator himself, Neil Gaiman, pleading Fox to change its decision.

While petitions to save the series have gone unheeded by potential network saviors, series star Tom Ellis has confirmed that there are still talks underway examining how the series could be saved... but nothing concrete has come of them. Even The CW, which is home to numerous DC Comics-based series, hasn't considered saving the mystical crime drama.

But even if Lucifer the show is well and truly done for, the Arrowverse could still, ultimately, extend a lifeline that could offer fans of the Fox series a bit of closure. Since Legends of Tomorrow is set to feature Constantine -- another character who originated in a cancelled comics-based series from another network -- as a recurring cast member, it only makes sense that the time-traveling series could also feature the return of Ellis as the Dark One.

Matt Ryan first brought the character of Constantine to life on NBC's series of the same name. Constantine quickly developed a small but devout fan-following that would lead the actor to reprise the role on another network entirely. Ryan first made a guest appearance on Arrow, and eventually returned for the third season of Legends of Tomorrow for an appearance that would eventually morph into a series regular role on Legends' upcoming fourth season. We don't yet know if John Constantine's next adventures will resolve the cliffhangers left dangling in his 2014-2015 series, but fans of the show will still get some measure of closure (and continuity) when it's all said and done.

There's no reason lightning can't strike twice. Like Ryan, Tom Ellis starred in a low-rated but fan-favorite DC series based on the occult, a series that suffered an untimely cancellation. Now, plot threads are left hanging, and Ellis' pitch-perfect take on the role is on the cusp of disappearing into the television ether. But what if instead of simply being cancelled, Ellis' Lucifer had somewhere to go? Like Constantine, the Arrowverse could easily bring the character across networks/universes/timelines to pay a visit to Star City... or the Waverider.

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Of course, this wouldn't necessarily tie up the series' major cliffhangers, nor would it necessarily bring back the rest of the show's cast, but a guest stint from the "evil" son of God himself could be enough to assuage fans. A few simple lines of dialogue could give fans of the cancelled series all they need to know to close the book on it, while getting the chance to once again enjoy Ellis' performance.

Legends of Tomorrow is a natural fit for Lucifer. After all, the third season of the CW series ended with Contantine joining the team, claiming that all manner of demonic hell had been unleashed. What would be better, then, than to have the actual Lord of Hell join the show?

Since the showrunner of Legends has already confirmed that Season 4 will dive head first into the mystical and the occult side of the DC Universe, now would be the perfect time to bring Lucifer Morningstar on board, if only for an episode or two. Whether he would appear as an antagonist or an unlikely ally, there are many possible, and more importantly logical, ways to have the character get involved in the series.

Even more intriguing is Legends' use of time-travel. Since the show isn't held down by one timeline, Lucifer could appear anywhere, and at any time. A demonic presence in medieval times? Maybe. A bar owner in prohibition times? Even better.

Ellis has shown that he embodies the role perfectly, from the dark and emotional to the funny and whimsical, and Legends of Tomorrow would be the perfect place for him to shine one final time. With Constantine as a driving force on the series, it would be a real treat for fans to see these two characters trade wits and blows, especially considering that the two of them share the same DC/Vertigo comic book roots. This could also open up the floodgates of the hellish mythology of the DCU while showcasing the duo's previous history as enemies/acquaintances.

We aren't asking for The CW to save the series, or to see Ellis become a series regular on Legends of Tomorrow. When Constantine was cancelled, a simple one-episode appearance was enough to (somewhat) satisfy fans of the series and of the character, while also generating a whole lot of positive buzz. Now, we find ourselves in a similar situation, a situation that practically begs for the "Constantine Treatment," allowing fans, and Ellis, the chance to bid Lucifer a proper final farewell.

Returning this fall for its fourth season on The CW, Legends of Tomorrow stars Brandon Routh, Caity Lotz, Matt Ryan, Jes Macallan, Keiynan Lonsdale, Tala Ashe, Dominic Purcell, Nick Zano and Amy Pemberton. For now, the official fate of Lucifer remains undecided.