As we've seen of late, any superhero actor or actress could be replaced at any time with a reboot. In Batman, Fantastic Four, and many other recastings/reboots have happened, and even more that are yet to come.
Every single one of us have our own opinions about each of the reboots, and that's understandable. I've seen many say they hate the idea of Batfleck while others love it. Many, many people (myself included) don't care much for the new Fantastic Four reboot, but I'm still going to see it. In a reboot, it gives us movie lovers something new and unique to see from the new actor.
With Chris Evans saying he'll take a break from acting once his contract is up, and RDJ very questionable to return as Iron Man, that worries many people that Marvel won't be the same. I'm not in love with the idea that our beloved heroes may no longer have the same face, but it's an opportunity to explore something we've not yet seen. Hugh Jackman himself said that it's a business, and that he may not be Wolverine much longer.
Let me know how you feel about the changes we've seen or that may come later below!!