TBH, Android 64 bit is the most important priority right now. We have less than 2 months for Harman to release a stable version, ANE vendors to update their ANEs, and us to update and test before updating the apps for users. I think they shouldn't focus on anything other than this issue right now.
iOS and desktops work ok (mostly) with the current AIR32, so it shouldn't be a priority. Next one in the line then is Android Q and maybe some issues which will come with the upcoming iOS13.