In a chatroom I've just heard that Strikeforce is closing and Dana is thinking of Ronda/Cyborg on an FX card for a one night thing. No legit source but since it's a rumor thread I thought I'd say.
EDIT: Would LOVE for it to happen tbh. I wanted it for a long time. It's about time we see the best fighters fighting the best fighters. Bellator is good for interesting yet not as talented older fighters or up and comers, while Strikeforce is just wasting talent at this point.