Especially beer has improved a lot but it's not there yet, I don't see how developing synthetic 'alcohol' will help when we still can't remove, or make the drink without causing, real alcohol?
As for hormone shots to treat an already acquired hangover... It seems niche/less than ideal - I don't think many people would want that as a regular expected thing, 'I am going to drink heavily and then take a hormone shot in the morning' sort of thing? And isn't it a solved ('banana bag') problem? Or is it the idea that you could buy injectable hormones for home use whereas you can't (and probably shouldn't want to) self-cannulate at home, and that's the only way(?) banana bags can work (because it takes more than reasonably fits in a syringe? Needs to be administered at a more gradual flow?)?
Personally I hope we find a way to remove alcohol without impacting taste at all, and then you can buy either version of the same drinks. I'd probably still get both, I do acknowledge the alcohol plays some role in me enjoying the drinks, but I can imagine having say an alcoholic pint or two, then alcohol-free. Or an alcoholic gin & tonic followed by AF wine. But until it's as good...