pure speculation and incomplete (basically just for fun):
HA: Honolulu, Kahului (both nights)
AA: LA
UA: SF
DL: JFK
Who would take the sixth? ORD, DFW, SEA....PHX, DEN, IAD, IAH? I think the three majors get one each, HA gets the two nights, and they fight over the fourth day slot.
As for the Japanese carriers, I imagine they both move one of their JFK flights to HND, keep their SF/LAX HND slots and......HNL?