I always had this theory about Misfit and Black Alice. They were both blood relatives (neither have appeared in the NU52) previously, wouldn't it be possible for them to have been born in the 5th Dimension and somehow they ended up in the 3rd dimension as

They were not blood relatives, that was a red herring.

In the pre-new52, Misfit came from Gemworld (but didn’t know it) and Black Alice is simply a dangerously powerful mystical conduit.

Interesting theory, though!