Kahului (PHOG) is in developement right now, we'll decide the other one later, but is likely to be Kona (PHKO) so, together with PHNL and the Vol.1, we'll have the top 5 airports in Hawaii covered.
While I can't disagree with the logic of covering the 5 tube liners airports, there are other possible package scenarios that could be considered for v.2 and a v.3. Maui has three airports that receive regular flight; Kahului, Kapalua and Hana. There's a v.2 to offer. Kona on The Big Island, coupled with Lanai and Molokai create package v.3. The smaller airports as a pair would equal the work of one of the two primary airports, so the time and effort versus the product cost/return is similar, with three packages being available and Honolulu.
Some of the smaller airports are served by Cessna Caravans, which was recently released to positive response. Couple that with a pilot I know of, maybe you do to, that flies one of these Caravans around Maui, Lanai and Molokai and you have a good source for information to get the work done right (Lanai has had recent work done) and a plane available to simulate real world flying.
But please, as a fellow developer of addons, beta-test, please. I love the work you have done and will be doing around "my islands", but there were problems I saw in the first five minutes at each of v.1's airports. Patches are OK, not needing patches is even better.
Then I'll take care of the itty-bitty fields, 1/2 of which don't exist any more!