I'm sorry but the idea that it would be too confusing is laughable. What is confusing about different incarnations of characters, which has been going on in comics for time immemorial? No one would be confused. People eventually rolled with Superman Reborn, which is many times more convoluted than the idea of different versions could ever be.
In any case, speaking of WW I'd love if that were to eventually return with it in such a hypothetical situation. It wasn't all I loved about the New 52 Superman though so if it didn't come back with it, okay. It worked before so it could easily work again, but say they wanted to keep things "in house", New 52 Clark also had an incredible dynamic with Lana that I loved.
Honestly, Berganza would be the only thing to turn me off in that situation.
Lobdell did exactly two stupid things with Superman in his run, which were bad but I'd give him the benefit of the doubt of correcting it. And hey, JRJR's art has a rather...rustic feel to it in the first place. I might not notice a broken hand, lol. That's not meant to be an insult, his art is an acquired taste and I kinda started to acquire it. But it does have a rough feel to me.