Yeah the show is so far up EJ's ass that I don't expect it to be mentioned much less addressed. It was viewer response that got them to begrudgingly acknowledge the rape at all. They had years to address it before he became a zombie and never did so no way are they going to do so now.
I agree that we'll see more Saint Nicole interfering in a story that should be primarily focused on Sami and Allie. Lucas should be present because he's one of the few people who can get through to Sami when she's being Sami and (I hope) be able to provide some perspective that can break through Allie's immaturity. He would be the perfect mediator.
All Nicole will do is just keep fanning the flames of this conflict, because she ultimately cares about pissing off Sami, but she'll act all sweet around Allie and fool everyone into believing she's on her side. There are a ton of different ways they could resurrect Sami vs Nicole but the conflict with Allie shouldn't be one of them.
As I was typing that I had another thought. Back when Sami was raped by Alan Carrie ended up testifying against her at trial right? Stupid Wikipedia and Youtube have let me down on this one, and Dustin's Days Page is long gone, but I remember something about Carrie was tricked into admitting that Sami could be lying about Alan raping her and that causing a major fracture in their relationship. I may have the details wrong but here's my thought: what if we see a version of history repeating itself? Allie is angry and resentful towards Sami, effectively placing herself in the Sami role opposite Sami's Marlena (not suggesting Sami and Marlena are alike just that the situations are) so what if we learn that Sydney is the Carrie/Belle? It would make some sense as Marlena's never really hidden that she had a favorite child/children and it wasn't Sami (I would have also loved seeing an ongoing story that involved Eric showing resentment towards her for that favoritism, but the show isn't exactly interested in him so I digress). Maybe one of these confrontations between Sami and Allie will reveal that Sydney is the favorite and sparked Allie's resentment.
The one thing I want, even if it makes me roll my eyes for the rest of my life, is for Allie to give us a REASON for the resentment. Sami went overboard after witnessing Marlena and John cheating but everyone can understand her hurt, anger, and confusion. Allie's behavior and feelings didn't come out of nowhere and I want them to delve into that. Maybe it will be as simple as Allie discovering the truth about EJ and thinking Sami would want her to follow her example. Or maybe the day she learned about adultery, and (falsely) realized that's what Sami did to Lucas, sparked the resentment and seeing Sami's apparent devotion to EJ just made things worse. Maybe it's the rape and her feelings are so mixed up that she doesn't know how to sort through them. I don't care just give me something.
One final thought: if this does include Sami revealing the Alan rape to Allie it would be fun if she also included shooting him in the nuts when he tried to do it again. I think Allie would get on board with that resolution even if it doesn't solve their problems.