Belarus would make a perfect launch-point for hitting Kiev.
I think Russia is moving a wide variety of men and materiel around to various convenient locations, all while being “in disarray”. If I were Ukrainian, I’d be getting ready to be surprised by a Big Push.
Ukraine wasted a lot of stuff in a failed counter-offensive. How much stuff do they have for a defensive effort?
Some people speculate that the Wagner "race to Moscow" was actually a convenient re-positioning of them for an assault on Kharkiv.
The news is so shrill and fake, anything is possible.