Yeah, Sephiroth is one of the all-time great Final Fantasy villains. He will clearly be the main antagonist with Shinra in the mix too.

I'm sure SE know it's going to be impossible to please everybody. If it's going to be similar in looks to FFXV then I'm happy. Granted, I haven't completed that game yet but that's only because I've spent 40 hours exploring the world. Now, give me the same thing but the world of FFVII? Hell, I'll be on 400 hours before I'm even halfway through the full game.