This is my bet for the "subtitle" or the theme of the season. I am choosing to ignore the statement of "only one of the teasers is real ha ha ha" - there isn't really anything to link all the teasers, but with the most recent being the cheesy horror movie one, I think it could be this. The setting could take place in the past and the present easily (different stages of this film company); maybe this studio only makes horror movies (explaining all the various horror movie themes there have been in the teasers). In terms of previous seasons, there's been a lot of references to TV and hollywood, etc - Elsa getting her show, Lana being interviewed, Coven ending with the TV bit, Hotel even ending with Billie on TV. And also Ramona Royale doing all those horror movies too. Admittedly it's a stretch, but it could be about "bad and mysterious things happening" on the set (props gone wrong and actually killing), plus things like the actors selling their soul (literally) to get famous, cursed movie sets, abusive/demonic directores, etc. I also think I'd prefer a more gritty farmhouse/cult/forest setting, but Hollywood seems to be a viable possibility at least...