Recessions aren't capable of happening when they want to happen. They aren't sitting around with their peers discussing timing. I suspect you meant something else.
For what it's worth, economists have noted that we've been due for a recession the last couple of years, but the bull market kept defying that. It wasn't a matter of if, it was just when and how.
Scientists have been warning of a pandemic since ebola and SARS. Also not a matter of if, but when and how.
I consume a lot of news, and it was evident in December that this pandemic was coming. Unfortunately, leaders from top to bottom did little to nothing about it.
For those people who do long-term planning for this kind of thing, they don't know precisely when, but they know it's coming sooner or later. Large companies have risk managers who develop disaster readiness plans. Governments do this, too, of course. How well either of those entities do it is another question, and not really the concern on this particular point.