We dont know if this is the strategy now. Seasons was announced less then month before it realese. Other EP was announced 3-4 months before the realese.
We got get together in december 2015 and then we got Movie Hangout in january 2016 We got city living in november 2016 and then we got Vintage Glamour in december 2016 So, we might get a SP in july\august
fame pack (EP) more supernatural (GP) after school activities (GP) farming (EP) island life (EP) more cultures\destinations (GP) romance (GP) fashion salon (GP) generations (EP) university (GP\EP??) Thats it I guess :)
5 themes for GP 1 - destanation (OR , JA) 2 - hobby \ free time (SP) 3 - buisnies \ lot (DO) 4 - supernatural (V) 5 - family (P) If its true, we might get some "free time" themed pack (hobbies, cars, romance, after school activities, sports) but who knows