Let me answer these one by one because it's a lot.
No, It will never go back to $3k. At this point $10k is pretty impossible, unless we have ww3 or something.
There's plenty of people willing to buy at $30k, so if it ever gets down to that, it will be bought in bulk by all those Wall Street speculators and I wouldn't be surprised if Russia and a few other countries decided to get their pockets full at that point, for instance to use it as liquid gold for their own stablecoin projects.
Would I buy if we flash crashed to $3k? Of course, but I'm not even registered at exchanges. I'd have to grab cash and stand in line to a bitcoin ATM

Why in line? Because I literally stood in a line when they were launching bitcoin ETFs. There were so many people buying it at that time that you had to wait for them to load cash one by one into that hole because the one that I was using did not accept more than a single bill at a time. You had to feed the thing and people were feeding it like crazy with 100 EUR bills.
As for the predictions they are still there! Check out the one by Bernstein Research. They said that despite the correction bitcoin is heading to $200k this year.