Unfortunately stuff like this is not a quick an easy process...mind you it's not challenging to redesign, but also getting it approved, testing, etc is extremely time consuming....I do remember back in the day someone on here said (I think it was disneyhead but I can't swear to it) said that their source said that they'll be sticking in bigger seating in like December...who was it that said this?
also, like I said before...it seems to come down really to chest size...there was no posted height limit, and I could fit comfortably in the seat...when I lose enough weight I'll be able to fit