Anything is possible, of course, but those prices Op predicted seem outlandish to me. There was more to those previous price increases surrounding the last two halvings I think, and I would also have expected any change to be priced in beforehand. If it was that easy to predict a huge increase just because of a halving, it would be like free money for everyone who was interested. That somehow doesn't ring true to me.
I well remember the same thoughts about the previous one yet it happened.
I do agree with you though. It seems way too set in stone in many a mind for something that has only happened twice but this one comes at a time where the building blocks are being put in place for a level of onboarding that wasn't conceivable at the first one.
It's also easy to forget that there was an absolute torrent of new coins still arriving and to arrive at the previous ones. There's still a decent amount of course but in 2012 56% of all coins had been mined, then 78% in 2016 and 89% this time. Then it's just under 11% left for 120 years. That's a big arse difference just when demand might reach previously uncharted levels.
I think it's likely there won't be many more halvings that have an actual noticeable effect, will anyone care about a reduction from 0.00152587 to 0.00076293?, but this one could be the biggest of all before its impact starts to fade away beyond pure psychology or nostalgia.