For the most part, I always expected there would be several references to the Compilation anyway, so this is really no big deal to me.

As for Genesis being "confirmed", I feel this has more to do with the fact he was inserted and played a large role in the Nibelheim incident, thanks to Crisis Core. Perhaps SE might retcon that out, but it's just as likely that part will have the most references, if not a cameo, of SE's resident disgraceful protagonist.

Either way, I don't give a smurf.