If they did it properly (fix missiles, loadouts, general bugs, improve fms, add a multirole us plane and incorporate he best 3d-models and terrain mods/teka mods, etc,) I'd definitely pay for it. I'd probably pay in blood even, but I'm not seeing it ever happening.
Just imagine PROPER aim-120s online vs flankers armed with 8 or 10 r-77s, or f-16 sead missions. I'd be in heaven.