I would personally like to get into that mysterious cave that I asked my question in the quiz topic about.
As for the Cait Sith issue - Reeve, as far as we know, has no actual combat experience. I'm not sure how he would actually be used as a character and even so, that would destroy the concept of his concealment and aiding the party behind the backsof Rufus and co. Although I would like to see Reeve get more screentime.
As Gamespro said, it would be cool to fight against the Sapphire Weapon, although that section of the story would have to be overhauled because it simply wouldn't make sense otherwise, with the Sapphire Weapon getting its' head blown off and everything. I also think the game could have different difficulty settings ( at least one of which would be harder than the difficult of the original game).
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