If they C&D’d skyblivion now only to offer their own remaster it would turn a lot of people off of it, they’ll wait until a few months after the remasters release, once they’ve gotten the bulk of their sales in and aren’t worried about the PR backlashing cutting sales they’ll drop the hammer on the skyblivion team.
Absolutely nothing will change for legitimate users. If you are not jailbreaking this means nothing to you. I really can’t imagine the PS5 jailbreak community is that big.