From squinting at a preview as far I can tell the only thing beyond the immediate airport area is a cargo ship in the harbour, which would probably be the only bit that clashed, and other boats here and there.
No idea whether they’ve populated the whole harbour.
Someone could try adding a z to the start of their folder name which would make the Aerosoft version load first and override anything I’ve put down, but then again since the harbour stuff is in the non airport file I’m not sure how they’d interact.
As for making a specific version for this if The People want it then I’ll oblige, but there’s not really that much done to the rest of the islands yet so they may as well throw away the whole lot if there’s a lot of clashing.
Things like all the roads, markings and and the football pitches are tied to the airport file so all that’ll be left is a few rocks, docks and boats. Water mask is the big one but it doesn’t seem possible without Asobo changing things themselves.