Maybe, but time is not necessarily on the Russian side.
They cannot afford to let the EU mobilize and perhaps even get directly involved.
This is why Russia wants a definitive end to the war, not a cease fire that is a de facto hudna to buy time for EU to mobilize and re arm the Ukraine so they can resume the fight.
They are poised for a breakthrough and the Ukrainian ability to respond to a resumption maneuver warfare is very limited.
If and when the Russians break through, the Ukrainian will have a tough time stopping them.
Both sides would probably take heavy losses but taking heavy losses to defeat the enemy and win the war is what war is about. It's a simple case of battle field economics - the Russians can incur heavy short term losses to defeat the enemy , or they can stay mired down in the grinding stalemate for years to come.
Either the Trump Administration forces the issue to obtain a new attitude with the the Zelensky regime and his foreign backers or the Russians have little choice to take the initiative and force the issue.
Putin was able to mobilize his army from the Russian Hinterlands.
But he's pretty much tapped out at this point. Which is why he had to ask the North Koreans to send some of their grunts.
The potential is there for Putin to mobilize even more troops but he'll have to conscript in Moscow and St. Petersburg.
He won't do that because he'll be at risk of getting overthrown.