I'm in the same boat, but with 3 FNC, 2 expiring. Was thinking about dropping the Maui part after Kauai since if things don't change, we'd have to test in Kauai. But can't think of anywhere else I'd want to use my FNCs. There's a new Waldorf in Southern CA I wouldn't mind going to, but of course couldn't find any standard nights. I'm worried about the vacation rental we have booked in Hana since we'd lose money if we canceled within 2 weeks before. I do have back up nights booked at the Grand Hyatt Kauai, so I could drop Hana and just go to the Grand Wailea.
Hawaii is looking to expand the vaccine passport by July 4. There's talk of dropping the interisland testing requirement then too. Our trip is mid July, so cutting it close! I'm keeping plans as is for now, will have to watch and decide later.