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.