I wonder if they will bring back Twilight,Celestia and Luna back
(Can’t say the same thing Cadance and Flurry Heart as they weren’t as important to the story and Flurry Heart’s rights until 2025 is owned by Discovery Family not Hasbro)

Or will it just be more references and nods to them and they will kept their fates vague and will we see a bunch of new alicorn characters?

However if they do bring back all of the G4 alicorns back that would cause unfortunately quite a fan backlash at least among the G4 diehards