I think the "One last time" refers to this being the final Mystreet season. I think it's certainly possible we get other rp's in the future, but coming out slowly and spaced apart. Why would she make a whole animation division just for 1 season and then disband it?
Fun fact this music video showed almost all seasons i and It showed mostly season 1 phienix drop high because its the longest season in the siries btw im still tryna find out in its gonna be fully animated mystreet or NEW SEASON 7