My TAM/CSICON roommate tells me that it might have been cancelled. His evidence is the Wikipedia page showing it as "Cancelled due to Covid-19", and a message he got from Jeanine DeNoma, president of Oregonians for Science and Reason claiming it was cancelled.
I decided to e-mail Barry Karr about that to confirm. I will let y'all know what he says.
Either way, it looks like I won't be able to see Cirque du Soleil's R.U.N. The show has already closed permanently.