I'm thinking if they are going to postpone the tour, we should hear about it soon. I doubt they'll postpone it last minute.
To the contrary, if they do, I think it will be last minute. It's too early to postpone now, but I think by the end of January we will have an idea.
Just today I saw a band (Glassjaw) only postpone the first half of their tour to start the year.
I only have one concert on my schedule this month (at the end) and that band has been posting about the tour even today so we will see.
But if you ask me, I think the band most certainly could have completed their original dates and not have the tour be up in the air again. However, it's entirely possible this covid wave is on the downfall when this starts and it can happen so it might work out perfectly. We will see.