The entrance for Soarin' will be at the old Food Rocks attraction. That's in The Land pavilion, not anywhere near Mission Space. Food Rocks will only be the entrance to the attraction. The attraction itself will be all new construction.
Initially it will have the same film as the Soarin' over California version at DL, but supposedly they're going to make a Florida version of the film so it won't be all California.
I'm sure they'll keep the smell of oranges as you 'soar' over the orange trees as oranges work for either California or Florida.
It's a fun ride. We rode it several times while at DL's C.A. theme park.