How about using the second floor of Imagination to use it as a place to "Imagenear That" so Imagenears can show the what if designs or current rides how were originaly concived and how they are.
A ride for Japan: How about a ride like Great Movie Ride, but thru Japan and Japanimation (anime) not the Mechas and stuff but the cute cultural things, and some girls in sailor suits. (jk)
Germany finally get them the ride that was plan and almost built PLEASE.
SSE: NOT an EXTREME MAKEOVER but a Overhault; let fix the track and omnimovers, audio and give them some new animatronics.
The Weather Pavilion! with a Epcot Original Storm Riders (Just imagine a "Clone" of Indy Ride system) inside some storms, (these cars can be used in water?) let take rides near a tornado (and not one like Universal) so you can feel the suction and a tropical storm (rain ponchos required).
Illuminations: Silver. an expecatucular display with a soundscore specially written for this celebration. Imagine a expecatular fireworks worked like the Wishes but all around Epcot pavilions and Spaceship Earth, Laser and video proyections in the new Water Barges (like the proyections in Fantasmic!) proyections in the SSE globe and the Earth Barge with new proyections and new light and pyro effects. Some of the music pieces to be played: One Little Spark, Golden Dream, Soarin Suite, Horizons Suite, and The Epcot Suite: A view of the Future and Discovery (Just make that one up)
A concert for Epcot: Let do something like Disneyland did in the Hollywood Bowl the fourth of July but in Epcot and bring to live some favorites like Little Spark, World of Motion, Reflections on Earth, Tapestry of Nations and so on in a Live concert with John Williams and The Boston Pops (or place any conductor / Symphony Orchestra here)
Leave a Legacy: Now that is done why not move the pictures and preserve them and show them and place a garden a new garden and fountain. LaL is nice but so steril so unhuman, so cold.
