Abby won't be seen, that was just my wishful thinking/joking around about the episode. I've read that Michael thinks we haven't seen the last of her though, but don't know that Pauley would come back for a while. Probably a bit like Cote - they'd need to give her a good reason & storyline
. I completely agree seeing the twins is far more likely than Abby in general
As for the twins we may get them, I don't know. (Random thought but we never see Palmer's daughter either
.) Based upon the episode stills