There's always the possibility that was always Ocean's intent, so I won't be surprised if it happens that way, after all, it's his own fault for letting so many other devs do he returning ex while dealing with slow development.
I still think the drama of not having Summer return would have more impact as a story, if done well, because we all have relationships from the past we can't mend. I like the idea that Nika learns to overcome his sadness about Summer more than I like the idea of returning ex cat fights.
But Ocean has the story he wants, one or other of us will be right, or maybe no one at all has guessed.
