In a recent interview JMo was asked if a an Emma flashback was coming up and she answered
““I think so. I hope so. I mean we’re already at episode 10 and there’s not been another flashback of Emma. So, ya know, I don’t know when or how. I know pieces of information come out in conversations with Neal because he has spent time with her. But he’s really the only person that any kind of information about her can come out because he’s the only person that’s spent time with her in the past. So we’ll see. I hope so.”
This means that Emma and Neal have a talk coming up and JMo says that Neal’s the only person that can get information out of her