Its a good question to ask. I have seen people who are much more knowledgeable than me say that the stock markets are overextended and on the verge of a recession similar to the crash of 2008 and it makes me wonder what the big money will do with their investment when the time comes.
I really think that they will look for a hedge, somewhere to put their money to keep it safe. An obvious place will be gold and silver but if new methods are developed for institutional investment, such as a bitcoin or ETH ETF, I can see a lot of money moving into this space as well.
A global financial crash could be great for the crypto space as a whole.