People saying you can't add iconic bosses forget we are getting gold saucer which although not a boss is an iconic piece of FFVII, we have already had Lightning and Snow and FFXIII related content, DQX stuff and Shantotto from XI.

I don't see the problem with adding JENOVA especially if they incorporate it into the storyline, it just takes a bit of imagination and open mindedness to get past the fact it was in VII.