Also I don't think Gaga would want to be known for one acting role. And coming back next year will probably type-cast her in that particular role. I would be here for a couple episodes though.
Have we decided whether the murder house connection begins next episode or not? Because if you look at :13 in the new teaser, it looks a lot like those scenes in season 1 where the one ghost would push the red ball around in the basement.