It's what has me dubious this will actually happen. Great, you get roughly half the country to lock down again, then what? Florida, Texas and the like won't be following suit, and unlike last time those states won't be giving into the insanity given the current politics. There's also a lack of major issue - i.e. election - to use it as cover for, it's basically throwing the last vestiges of goodwill away for nothing.
Though on that note:
This does seem probable, especially given how quickly media has ramped up the "hate the unvaxxed for your suffering" narrative this week and have put out the first feelers over booster shots. What I also suspect is they want to use this as cover to push further stimulus (and extend the eviction moratorium) given how fast that cliff is approaching. Really does seem like the intent is to go all-in on this, but this isn't 2020 and there's no orange man to suck up all the blame.