The futon critic is showing that 2/14 will be the season finale for this show. Fox's own press site is confused, showing that the latest episode was supposed to be a one-parter, and that a new family shows for the next two weeks.
So...either we get one more episode of the Ghosty mom, then two episodes with a new family, or the last episode is a one-parter on 2/14.
I'll be happy to see the show take a rest. The premise has been out there for a while, and they need to re-think what worked for the show and what didn't.