I think it would be neat if they made the final scene super retro. Instead of making it realistic (which doesn't really fit our tomorrow land) they should make it like... well the Jetsons (but of course, not actually the jetsons).
Could you imagine? "Oh dad, its the year 1988! of course everyone has jet packs" It could be very entertaining, and they wouldn't have to worry about it getting dated all the time.
Or maybe they could make It like the original view of the future? does anyone know what the original ending was like???
Also, I think a buynlarge store would be really cool. I really don't mind Walle coming, I just hope they leave COP.