My guess, simply educated guesses...
Likely:
-Attendance capacity increases beginning Memorial Day, 40-50% ball park
-outdoor masking lifted by July. (Likely continue indoors)
-modified FOTLK return (already announced)
-additional QS and TS opening, increasing capacity
My hopeful list— things that might happen, but I wouldn’t bet on it:
-Early entry starts
-reduced social distancing in queues and transportation
- Epcot Forever and Fantasmic
-full or nearly full capacity TS dining
Unlikely until maybe very late summer:
-Beauty and the Beast, Nemo, Indy stunt show, Etc
-Harmonious and Magic Kingdom fireworks
-buffets
-end of indoor masking
-AP sales
I’m almost positive won’t return until September or later:
-widespread character meets
- fastpass (or new system)
-dining plans
-full capacity