Russia will not have a sudden reversal in capabilities. China is not going to abandon its strategy of hedging its bets to tie itself to a sinking ship all of a sudden. Iran and Saudi Arabia will not have a sudden change of heart to adopt a completely opposite position. Zelensky is already to US liking and Ukraine has shown itself to be capable rather than on the verge of falling apart.

Basically OP was positing a complete reversal of existing realities that all just happen to align with enemies of the US all of a sudden becoming more capable and deciding to band together. In reality political alliances, as well as military and economic capabilities, don't do screaming 180 degree turnarounds.

But Russia is accomplishing their objectives, so there would be no reversal. Ukraine is holding on by pouring tens of billions of dollars worth of Western armaments into the conflict (which are coming slower and slower), not to mention the lives of servicemen.