the long slow line at the Finding Nemo Submarine attraction got me thinking about how it could have been made better. I like the ride, but when you get past the experience of going into the submarine and being underwater you are basically watching a show through a small porthole. I have actually heard people say that it was just a flat panel display in front of each porthole instead of an actual underwater view. and the existing subs just take too long to load and unload.
I have seen the alternate show for people that can't access the subs. except for the experience of going into the sub I can say that you don't miss that much and the large screen is better than the small port hole.
so here is my idea for Finding Nemo II. use a Star Tours type simulator. the interior would be submarine themed with a main screen in front and maybe a few side and overhead porthole screens. the queue could be themed as a scientific research ship with the passengers loading onto mini subs (the simulator). instead of just sliding sideways, the mini sub will take you on a roller coaster ride in the EAC, through a mine field, into a jelly fish swarm and to the bottom of the ocean. this could also be an attraction that could have two versions with one being toned down for smaller kids and those that might want a milder experience.
this wouldn't fit in at the current site so the new ride would be in California Adventure. maybe next to Monsters Inc.