It's statistically likely that there will be one eventually, they seem to be some sort of Poisson process, just as it is likely there will eventually be another earthquake that destroys the Bay Area again. That doesn't mean it can be predicted even to the nearest year.
People were predicting a crash several years before the 2008 mortgage crash, and even so house prices have rebounded since then.
I do regard the arrival of major brands into NFTs and the purchase of crypto-themed sports teams and stadiums as a leading crash indicator, but a lot of people have lost money trying to predict crypto crashes.