It's too bad we are past the PS1/PS2 days of these big multimedia game projects from Japanese developers.
I think it would be very cool if they made a Gundam game that would emulate the experience of a new AU show. Maybe split it into 2 or games ala .hack. But basically have a Gundam game that is its own universe and story which would make for being a new AU series but in-game forum. Obviously have standard third-person Gundam game action, but also visual novel or RPG stuff in between. Yes I know there was MS Odyssey or whatever on the PS2 and that's neat too. But I guess I'm thinking of Gundam meets Sakura Wars. I want to go through a Gundam game and have it feel like it's own unique entry in Gundam and not just a UC side story that's whatever.