The banks must be realising that crypto could see the end of them and so are in the process of taking all the money out, which they can do because they have so much money they can just buy in and sell and keep on doing it until all the money has gone; and what's to stop them? That's one scenario that I hope doesn't happen. The other is that big institutions will come in with huge money because fiat is breaking down and is almost at the point of collapse; they will come in because they can see it is a good thing, immensely profitable.