I don’t see how. Another movie where Superman is going to die? A new Superman supposedly going through his bucket list? Visiting silver age characters that don’t really fit with the rest of the DCU?
I like Cavill simply because Superman is really hard to cast. He’s turned out to be a bit of a dull Superman, there’s not much fun with him. He’s a quiet, brooding type and it makes him quite boring. Part of Superman and Batman’s problem is that neither is a wisecracker like the bulk of the MCU characters. They’re straight men, who probably need a comedy relief partner to help them through a movie.
I’d have Cavill take a leadership role in the DCU, build a headquarters on the moon and make the characters appear so much bigger than the Marvel guys. That’s why you need a Green Lantern - the idea of a pantheon of Gods being all that stands between us and the dangers of the universe. A guy like Thanos would be a days work for this lot, a threat like Independence Day would be taken care off over a weekend.