Six seasons and a movie !!
TV references aside. I used to write quite a bit in the F95Zone thread of the game. You can find about insights and some other stuff there.
Briefing. There are 3 seasons.
Season 1 ends with Rebeca meeting Paula. We are pretty close to that.
Season 2 focuses on the "fourth-some" relationship between Paula, Rebeca, Agnes and Olivia (provided Rebeca doesn't kill Paula on-sight), as well as Paula's backstory and eventual redemption.
In Season 3 Olivia becomes playable and the story focus on her backstory and her point of view during most of her interactions and Rebeca redemption.
There are two endings and two bad endings planned, one for Paula, one for Rebeca. It's likely that I will add a third main story line ending but I'll just see where everything is going by then.