TBH, the F-22 is here to stay. It'll be in limited numbers, used only against nations with no anti-aircraft ability, and kept in cotton wool otherwise. Meanwhile the drone arm will grow and get more competent, and the conventional airforce will make up the shortfall.
In terms of an air war against the likes of China, well, I think it's very unlikely to happen, but if it does and there's a shortage of aircraft, then there's:
