I have thought of two very simple things that could be done to Soarin' in WDW and Soarin' Over California in DCA that would make them both unique and updated.
WDW: Soarin' could be updated with random scenes, but not just in a random order. You could go coast to coast for example on different journeys. Passing by Mount Rushmore on one ride and flying over the St. Louis Arch on another. You could go through the same places on any given ride but during different seasons on different flights.
DCA: With the refurb going on, Soarin' Over California could be transitioned to flying over 1920s, 30s, 40s, 50s, and 60s LA/California giving you a different decade every flight.
A very simple change that could be added now is temperature adjustment. Why is the temperature the same going over the beach and going over that snow-topped mountain?
I really like these ideas because it makes the same attraction that just had to be built in Florida similar but still unique.

