Sure. Just gonna hold my breath and insist that this happens.
It’s an eventuality. Putin will not live forever and his successor will either withdraw or commit to total war.
But there is no plausible scenario for a return to status quo ante bellum with Russia remaining in Crimea. Too much blood has been shed.
Sad is that Putin might have been able to buy Crimea and even Donbas prior to this war. It would have been far cheaper in terms of blood had he at least made a good faith effort to buy what he is trying to steal.