After introducing Robert Pattinson's Caped Crusader in War for the Planet of the Apes, respectively, opening the door for Reeves to take on increasingly grandiose projects at will.
In an interview with every Matt Reeves movie has given the director a lot of flexibility. However, in this case, he felt that Marvel's set outline for the MCU may inhibit his ability to explore new artistic territory as a director. Read his comments below:
I have such respect for Kevin Feige and also for the [Marvel] filmmakers. But to be honest with you, I just don’t know how I would make my way through that. There has to be some level of discovery for me, where I have some freedom to find my way. If I have to come into something that’s already set too firmly, then I think I would get lost. And I don’t think they would be happy with me either.
Yet if Matt Reeves were to pivot and consider making X-Men franchise set up with Logan. In short, whatever Reeves plans for growing Bruce Wayne's character in The Batman franchise could be taken to even greater levels with Wolverine.
Marvel has several different aspects of its cinematic universe, such as the multiverse, yet one uncharted area is the subject of mutants in the MCU to date. During 2019's San Diego Comic-Con, Marvel Studios boss Kevin Feige confirmed that the X-Men were coming to the MCU - and there's probably no more well-known mutant than Wolverine. Thus, using him as a lens to develop the foundational understanding of mutants in the MCU would be an extraordinary opportunity for Reeves to create. This situation could be similar to how the MCU used Doctor Strange In the Multiverse of Madness.
Thanks to the multiverse, Reeves could tell Logan's stories that take place in another world but still have ties to the MCU at large. With Wolverine as a central focus for Reeves, multiverse stories could lead to a spinoff Disney+ series or more. Matt Reeves is already developing spinoffs from The Batman, including The Penguin and an Arkham Asylum series, and he could surely follow in the footsteps of other Marvel directors who had similar creative latitudes in the franchise. For instance, James Gunn expanded the cosmic side of the MCU, and he was given the leeway to make Black Panther film franchise and the Disney+ Wakanda spinoffs.
Marvel Studios has an overarching vision for the future of the MCU, but they have always relied on the creative minds of talented directors to bring it to life. Matt Reeves falls into that category, and his take on Wolverine would undoubtedly be a memorable one. Although Wolverine wouldn't have to be his only option, whichever character the MCU chooses to portray next, there's no doubt The Batman director would do a fantastic job.