That’s a great question slurpieez. I had that exact thought as I was watching the episode. I think she does! And I think she was the person August called. The episode was leading us to believe it was Henry he called, but I think it was the mother superior/Blue Fairy.
But if she does, then do all the other Nuns also remember their past? From the episode “Dreamy”, I didn’t get the impression that Nova remembered.