A younger Superman to do what though? This is where Timelines for DC gets really fucked up because now what do you do with him? A younger Superman with the same damn Story to go where though? The Batman was one of the best Superheroes Movies in the past Decade and he has his own Universe right now I don't think I wanna see a young buck Superman have his own Universe because I know where it goes and it leads to Zod, Doom or another Justice League new rebuild. I get it they want a young Superman for the kiddies and Adults to love but I don't see how you couldn't of created some really cool stuff with Cavill that alot of fans wanted to see. Right now Superman is at the Kiddies table at Christmas Dinner for the foreseeable future and that doesn't sit well for me when you got Shazam, Aquaman, Joker 2, Blue Beetle, the Flash Movie on the slate with the majority of these Films being in that Universe. Maybe The Flash Movie resets everything but right now I'm utterly confused at DC decision today with Cavill.
Honestly, none of those movies are James Gunn movies. Joker/Batman are not affiliated with James Gunn and the DC Universe so they are irrelevant to the proceedings. Shazam, Aquaman and Flash are from the prior regime and will likely be swansongs for both actors (if I recall they already fired the Flash actor for being a shit person and a criminal). If Momoa and Levi stay on I'd wonder if they continue with the current continuity or do a soft reboot. The only reasons the movies are even being released is because they're already done or close to it (don't get me wrong they probably shouldn't even bother with releasing Flash).
With regards to Superman, we have absolutely no idea what direction they go. They could go Smallville era, they could go with a young guy, but as long as they decide not to make superman a fucking murderer I don't care it's already better than the shit they killed the character with in Man of Steel.
The so-called DCEU has been shit for a long ass time. People complain about DC movies. Aquaman 1 and Wonder Woman 1 were pretty good, and The Suicide Squad was really good. The guy who made the best movie they've made has come in to fix the broken system, but everyone wants them to keep all the bad stuff? If something is bad you replace it. Cavill might be a good actor and not even be a bad Superman, but he's had 3 bites at the Superman apple and 3 bad movies. Move on to a new actor and tell a new story.