I think it is more likely that the "amazing" things, as described, will become mundane, thus shifting the definition of what becomes interesting or noteworthy. Even then, I believe people who continue to write by hand will still be appreciated, given this is fundamentally a hobbyist space.

One good example is nocash, who continues to write all of his Windows-targetting emulators in hand-rolled assembly to this very day. For a long time, some of his emulators - most notably NO$GBA - were at the forefront of popularity among homebrew developers due to their unmatched debugging tools; even though one could make them much faster with an HLL, nobody really stepped up to the task. Even now, his work remains relevant thanks to the extensive documentation he maintained alongside the emulators he developed.