Won't require years though. We're right on the verge of the mythical "I'll wait for 4K / 8K" and "I'll wait for next gen" point that the fence-sitters often mention. Example HP just announced Reverb G2 ($599) with 2160x2160 per eye (that's 2.5x pixels more than Rift S), and Samsung and others are expected to follow this summer (Odyssey 2, etc). The "through the lens" preview videos of the Reverb G2 show no perceptible pixelation - its going to be remarkable for flight sims (and HL:Alyx and everything else).I think a game like Pcars and VTOL have incredible potential to be the absolute best experience VR can provide, if only we had the hardware to do them justice. A super high res HMD (4K-8K), and a GPU capable of pushing that to 60fps... and I think you'd have something really special. Hopefully in a few years we'll be there, but for now I tend to avoid games of this nature in VR.
Also an insane GPU isn't required. Hell, a 1060 will run VTOL VR at 90FPS right now, and my 2080Ti runs it at over 6.4K (3212x4012 per eye SuperSampled 500%) @ 90FPS with room to spare.
So what many don't realize is the tech's already at a point that a mind-blowing simulation of the experience of flight can be had today with a cheap $300 HMD.