Good to know there are more themes to look on. I feel the two tracks I'm looking forward to the most are J-E-N-O-V-A and the Main Theme.

I imagine the main game will have some kind of A.I. control. It will probably be introduced when they finally let you have control of materia placement as well, so I'm not quite as worried about this aspect. I would actually be all for a Gambit style system, just maybe one that only give me three to five slots as opposed to the ten in XII. Perhaps limit it to how many battle use materia you have equipped. Though I imagine it will be closer to KH's party A.I controls.

I'm also wondering if support or independent materia will be used to augment moves like Evade and Defend. I already have a feeling Cover will be replaced with a materia that does the Decoy effect instead.

I also imagine that Summon materia, due to their new mechanics, will likely be a one per person deal like VI and XIII. It will be interesting to see if they'll have any customization options in terms of A.I. Thinking of how they work now, I can only imagine how much bulltrout KotR is going to be in this game, though we probably won't know until Episode 7.

The biggest thing I'm curious about is how the game is going to handle having more than three characters on the field? In the trailers, we've seen Cloud being part of the group while escaping the Shinra building by the elevator, so I'm wondering if the player is limited to three active party members, but may have the option to switch one out for a reserve party member like in X or XII? Granted, like the original, its also very likely this won't be explored until Episode 2 because they may simply keep the scenario written in a way where the full party is never with you.