I would like to see flip up Cart wheels all controlled by a lever similar to the TI dagger board.
Like many others, I agree that a better seat is way overdue
The cart situation sounds interesting, but that would make things heavier. I don't want heavier.
The seat in the AI isn't a problem for me. Any type of Pro Angler style seat would raise the centre of gravity and make it less fun as a kayak. I wouldn't mind seeing an accessory luxury seat that could plug in for all those who want it, but I wouldn't want the added cost or complexity of a PA style seat for my personal usage. Keep me low, keep things simple, and I'm good there.
I do think that the strength of the AI is the versatility, and I agree with others that making any changes that reduce the versatility, but don't add significant sailing or kayaking abilities would be changes that I don't want to see made. For me, any changes that make the boat a better sailing craft, and a better kayak are great and if push came to shove, I would hope those two things took precedence above all else. The rest is gravy.
This thread just goes to show how difficult it's going to be to redesign a pretty impressive boat!