The Rainbooms, Sweetie Belle, and Apple Bloom are now starting a new but it'll take time. Apple Bloom going into a darker sense of insanity while Sweetie Belle is on suicide watch. The two of them created a lot of chaos that would have sent them to prison. They destroyed not 1 but many friendships including their sister's friendship towards Sunset Shimmer, they destroyed Scootaloo's family and felt happy about it. The guilt is with them and their sisters, Applejack and Rarity are suffering as well. As for everyone else, they are taking things slow.
Slow and steady as the healing process goes. School is something that none of them are looking forward too and they will have to be better friends that listen first before reacting since now, they are on their own. No Twilight to back them up and clearly no Sunset Shimmer to build up on.
Another sequel from Anon-A-Miss: Friendship is Home.