I'm in the same boat. Booked Dec 28-Jan 2 at the Fairmont Banff Springs, but payment in full is due at the end of this month, and I'm not at all optimistic that the Canadian border will be open. My employer also has not lifted the mandatory 14 day quarantine after international travel. So, I'm expecting to have to cancel.
I looked at alternatives, but it's slim pickings. Florida and Colorado are open, but we just went to CO for Labor Day. Hotel prices in FL are nuts. Also looked at Charleston, SC or Asheville, NC. Plane tickets have increased in price, but either of those might be an option.
I'd love to do the Pacific Coast Highway and Hearst Castle, but pretty much everything in California is still closed. We were supposed to go to Seattle in May, before heading on to Alaska. I'm not sure what's open there (slightly concerned about protests, too). I think Utah is open, but we don't ski, and I'm not sure there's enough to do in the SLC area.