As for the A330-800neo in Hawaiian's fleet, I was surprised when they chose the A350 in the initial order all those years ago. Hawaiian always just 'seemed' to me to be a perfect match for the Dreamliner and I agree with posts above that all three models of the 787 could be effectively used on Hawaiian's routes. Perhaps the A330neo deposits could be used for additional A321LRs for HA or additional ATRs for Ohana?
Did the performance of the current A-350's currently flying prove to be better or worse than predicted by Airbus? I'm curious also by HA's decision to buy the A-358, but I am sure HA did their homework before buying, they are cautious & haven't placed large orders.
I think HA was already looking at over water, narrow body aircraft & Airbus was likely the right choice at the time it was placed. Now their 358 order was cancelled, HA turned down the 359 for the larger size & instead was persuaded by Airbus to put it's faith in the 330neo programme.
I am positive the A-321 is the right aircraft for HA & their west coast operations, to more easily compete with AS, UA, AA & DL to the outer islands. I am unconvinced that the 330neo is the right match for HA, I think a mix of 788 & 789 would suit better. The 788/789 are flying the longest routes on the planet, I'm quite sure HNL-SIN or HNL-LHR is in the range of either capable aircraft.
Unfortunately when it does come time to replace their awesomely capable 717 fleet, neither Boeing or Airbus will have what they need & HA can't use the leverage of a future impending order. As HA has been Airbus friendly lately, I'd be rather surprised if HA went to Boeing.
As I've no knowledge of what the contracts between Airbus & HAL, I can only assume that after Airbus dropped HA's original preferred aircraft, HA does likely enjoy some favorable terms that are not present in an average contract of this nature. Possibly some wiggle room if these planes aren't a good fit, but before delivery.
707, 717, 720, 727-1/2, 737-1/2/3/4/5/7/8/9, 747-1/2/3/4, 757, 767-2/3/4, 777, DC-8-5/6/7, DC-9-1/3/5, MD-80/2/3/7/8, DC-10-10/30/40, MD-11, F-27, F-28, SWM, J31, D38, DH7, DH8, DH4 SD-330, B-146, L-1011-2/500, ATR-42/72, VCV, A-300/310/318/319/320, CR2/7