If the new game uses the same engine this game uses to fly planes and the planes from here are used in the new game. Then any new plane will be released for both games. You ever look in the arena setup settings under the environment and ranges tabs and see all the new variables for match play? There are some interesting settings for numbers of players in there 16x16, 32x32, 64x64.
Once you step back and look at all of what Hitech is up to, he is not screwing anyone. Just expanding his offerings to attract a different customer demographic while using his existing code with enhancements to achieve that goal. He worked on AH3 for a year before the two years of the alpha\beta where he revealed the new game in progress. I've watched the arena setup variables grow for about a year now wondering why he was doing all of that work behind the scenes. I'm still wondering what type of game controller will be the dominant tool for playing the new game with the demographic it looks like it is targeting. I'm even wondering if it will have training wheels matches and full on MA no training wheels matches offerings.
So if he is using the AH3 game to run the new game arenas, then he will be using the AH3 planes and new planes will fly in both. Lets see if that is part of the plan in 2019 since he already has the Steam version and AH3 version to keep updated and both fly the same planes in the MA. It's a better use of Waffle's time to build only a single version of any new ride usable in AH3 and the new game. Heck there may well have been an invitation only closed beta going on under your noses for months now.