There's an AMA with the writer on Reddit who says they can go 2 or 6 as the story is quite complicated and there's lots of paths to follow, but they'll try to make it fit and end normally, as with this season.Worry a bit for season 2. Hope they don’t drag it out or try an over elaborate story. I can’t see how they can keep up the quality all the way through. Should be 3 seasons max.
The tension and branching off of all the characters on the final episode was really smartly done.
That said:
