These are probably stupid ideas but since most of us are desperate to prevent the seat wrinkles, I've been brain storming again (not drinking - I swear!):
Idea #1: what if the leather was nicely sealed on the inside and then glued (with a flexible/non-brittle glue) to the foam cushion? Could that reduce the amount of pillowing?
Idea #2: what if the leather was backed by some less stretchy material? Note sure what material that might be, but gluing it to the leather could at least double the thickness and reduce the stretching, twisting and bunching.
I'm thinking it would be done just to the seat bottoms and neither method would help with the wrinkled seat bolsters.
Anyway, these are probably bad ideas but I just felt like exploring some preventative measures rather than watching them deteriorate while Infiniti decides what to do (if anything).