Antaniserse: It's going... I still have access to an earlier version from when I signed up for alpha testing, but it doesn't automatically update anymore,I suspect my account didnt go into the next wave of testing (fair enough, since i wasn't active)
Anyway, the version I have is already very playable and good looking in the flight engine, very rough in the concourse/briefing screens; not sure what the roadmap is for a "release", but the core gameplay seems completed already
If you are a member of the discord server, can you please reach out to one of the dev team and we can check your access.
