I'm rewatching Asylum and they totally hinted at Freak Show.
In "The Name Game" Pepper is talking to Arden and says,
"You see that's how they treat us freaks, blame us for everything.
And then she says to Arden:
"You'll experience firsthand how it feels to be like us freaks. "
Still wondering if they were actually going to do Freak Show for Season 3, but then put it off in place of Coven. Ryan did say this is something Jessica has been wanting to do for years.