Unfortunately I think it's just a matter of time before we start seeing track days canceled due to restrictions being imposed to slow the spread of this ... flu.
My first 2 track days are scheduled for April 27th and May 8th. Both on Nordschleife. I'm based in Germany, so the border closures announced yesterday don't affect me, but if they impose limits of 50 people or more I bet those days will be canceled.
How is it where you live?
Also we were supposed to spend Easter weekend in Amsterdam, but now borders with Benelux are closed, so that will likely fall through as well.