While the Deadpool portion of Fox’s panel might have blown the roof off of San Diego Comic-Con 2015’s Hall H, it was X-Men: Apocalypse that brought the biggest lineup of stars.

The panel featured director Bryan Singer, Even Peters (Quicksilver), Lucas Till (Havoc), Lana Condor (Jubilee), Nicholas Hoult (Beast), Jennifer Lawrence (Mystique), Michael Fassbender (Magneto), James McAvoy (Professor Xavier), Kodi Smit-McPhee (Nightcrawler), Sophie Turner (Jean Grey/Phoenix), Oscar Isaac (Apocalypse), Olivia Munn (Psylocke), Ben Hardy (Angel), Alexandra Shipp (Storm), Tye Sheridan (Cyclops), and screenwriter Simon Kinberg.

In March 2014, 20th Century Fox carved out release dates for several of their upcoming movies, including a July 13, 2018 slot for an untitled feature based one of their valuable Marvel Comics properties. Since the studio thought nothing of revealing their release plans for X-Men: Apocalypse, the third and final Wolverine solo movie starring Hugh Jackman (which is rumored to be an adaptation of the “Old Man Logan” miniseries), and the sequel to August’s Fantastic Four reboot, people started to wonder if this mysterious Marvel flick was the long-gestating X-Men/Fantastic Four crossover event that was first hinted at almost two years ago.

If rumors to be believed, Fox’s attempt to create their own Avengers-style silver screen Bacchanalia of superhero excitement could be happening in 2018 after all.

If a rumor that was recently brought to life by Latino Review’s Umberto Gonzales – a.k.a. “El Mayimbe” – on last week’s episode of the YouTube show Marvel Movie News is to be believed, the next solo silver screen adventure of Wolverine could take the adamantium-clawed mutant superhero several decades into the future.

Gonzales suggested that the Marvel Comics miniseries Wolverine: Old Man Logan, which ran for eight issues from June 2008 to September 2009, might possibly serve as the source material for Hugh Jackman‘s final on-screen solo bow as Wolverine.

Check out the video below to hear Gonzales discuss the rumor. The Wolverine portion begins at 39:15.

While the upcoming X-Men: Apocalypse and next entry in the Wolverine series could possibly be the end of Bryan Singer’s two-part run with the franchise, that doesn’t mean you can expect the X-Men movies to slow down or take a break.

It’s been announced that a new spinoff of the franchise is on the way titled The New Mutants, and just as it sounds, the movie will introduce a whole new lineup of mutant characters. Fox has also hired a someone to make the movie, bringing in The Fault in Our Stars and Stuck in Love director Josh Boone to helm the project. Boone will also pen the screenplay along with Knate Gwaltney, with Simon Kinberg and Lauren Shuler Donner producing.

The X-Men film universe has been more or less a 16-year narrative. Though there are loose connections, the franchise itself is pretty much self-contained that was put together by Bryan Singer. Now, a new rumor has surfaced that the universe, or at least Singer’s vision of it, will come to an end after X-Men: Apocalypse and the upcoming Wolverine 3.