will aerofly fs4 be released for mobile too
You can only hope something better (buildings/trees) on iPad M1 devices.
The actual iPadOS 15 limits memory usage to 5 GB, but the next iPadOS 16 will allow virtual memory swapping until 16 GB. But it is for September 2022. I don't think IPACS will be ready with that and will to do it this soon.
My M1 Mac uses its fan when running Aerofly FS 4 (the only case the fan is used, but it's normal here). So, a powerful Aerofly on mobile will be limited anyways because of cooling. But yes Aerofly can go quite farther on iPad M1 (because we know Aerofly FS 4 run on M1 Mac).
And for me it is not problem to sell Aerofly on mobile that works on basic mobiles, and join an in-apps purchase to download and activate special high performance features (because, when you have bought a 1000 € mobile, you can pay a 30 € add-on feature).