Back in late August of 2022, a YouTuber called The Cosmic Wonder said that he heard a rumor about Deadpool 3 basically being a Deadpool-led X-Men movie. According to what he heard, the premise is going to center on Deadpool traveling across the multiverse with the X-Men. Not just Colossus, Negasonic Warhead, and Yukio, but major X-Men members from the X-Men films.
This was weeks before the announcement that Hugh Jackman would be returning as Wolverine for Deadpool 3. Hugh Jackman himself said that he decided to return in late August of 2022, the same exact time Cosmic Wonder heard about the rumor.
Last month, Patrick Stewart said that Hugh Jackman told him to stand-by for Deadpool 3. Then later that month, Stewart suggested that he and Ian McKellen were both going to return as Professor X and Magneto.
So far, the rumor looks pretty legit at this point. It also seems like the movie might not even be titled "Deadpool 3". According to Daniel Richtman, the working title for the movie is "Untitled Deadpool and Wolverine film", which suggests that Wolverine will be in the title. This was later backed up by Hugh Jackman himself, who referred to it as "Wolverine and Deadpool". So it seems that Deadpool is going to share the spotlight with at least one character.
What do you think? I think if they're going to give the X-Men co-leading/supporting roles than they should call it "Deadpool & The X-Men". Basically, being the Marvel equivalent of Harley Quinn & The Birds of Prey.
If the rumor is true, they are totally going to make a joke about how they can afford the X-Men now that they're under Marvel Studios instead of Fox!