Aside from the queue, there are very few differences between the MK version and the DCA version. The only ones I can think of off the top of my head are that at the times I rode them, the transition to Under The Sea in MK had an Atlantica mural on the wall that was absent in DCA's, and Ursula's defeat had some lighting and sound effect changes between the two rides. I also have yet to see Flotsam and Jetsam move in the Florida version.