While one of Mark Ruffalo's idea is straight out dumb as heck, at least he confirms that a Hulk vs Wolverine movie has been talked about, which follows those recent rumors.
While attending the Tokyo Comic-Con, Mark Ruffalo fills in the crowd:
Kevin Feige just asked me last week if I had any more ideas or stories for the Hulk, and I said, "Yeah, I think there is still some stories to tell." And he said, "Why don't you come in and tell me about them and we'll see if we can find a place for you in the Marvel Universe."
Ruffalo then adds:
Hulk versus Wolverine! I'd like to see that. Hulk versus Wolverine.
Hulk vs. Wolverine rumors
It's claimed that since Universal still owns the distribution rights to Hulk solo films, that the flick will be more about Wolverine, hence "Wolverine vs Hulk" (or whatever it ends up being titled) and similar to how Thor: Ragnarok adapted the "Planet Hulk" comic book storyline but was more about Thor, the Wolverine vs. Hulk movie will focus on Wolverine's MCU origins that see the Immortal Hulk go into Canada for some reason with Alpha Flight and Wolverine in hot pursuit.
If you are not familiar with the Immortal Hulk from the comics, it's pretty awesome and more adult and horror-oriented, and the complete opposite of the cruddy and goofy Hulk from Avengers: Endgame that disappointed so many fans.
Rumors also offer the flick is three to four years away and that it may even feature Hugh Jackman back as Logan as they are leaving the door open for Jackman to return.
Wolverine actually first appeared in the Hulk comics, so if this happens, it would be a fitting tribute in the MCU.
Disney and Marvel now own Wolverine and the X-Men related characters, as well as the Fantastic Four, as a result of the purchase of Fox Studios.