Once Patrick/Emma/Robin are reunited, I have no idea how the show will handle that, considering apparently the Robin actress doesn't want to come back permanently. Maybe she'll become a part time occasional character. Just guessing, no spoiler. But it puts Patrick, a main character, in a place where his storylines would be limited.
Anyhow, next gut feeling is that Sabrina's ex-boyfriend was brought back for a reason. I don't see them together at all. He just doesn't fit her personality & they have no chemistry whatsoever. I was hoping he'd at least be charming, but nope, not at all. But I'll bet the show gets them back together after whatever goes down with Robin.
I hope not, but like I said, he's there for a reason.