Not discounting that as a possibility, because it definitely is, but what would that accomplish for them besides another massive displacement cost? They will likely continue to run LAX, LAS, SAN, SEA and HND on the a330 to HNL. That route structure is easier accomplished based on HNL. If they want to do a bit of Europe or Asia flying out of SEA on the A330 as well they can easily just do the longer pairings you're talking about but starting in HNL. In 6 years when all the displacement mess from getting rid of the 717s and 321s is finally complete I could see the move beginning, but I'd be slightly surprised if it was sooner.

I do agree that the HNL base will be a shadow of its former self. 787s gone, 321 and 717s replaced by 737s that do interisland and some west coast stuff with a lot of west coast feed coming from the mainland bases. It sucks, but it seems like that's where we're headed.