Whatever Ukraine will look like after this ungodly mess will be exactly as the Western Countries want it to be in regards to production and resources. It's Governance will accommodate the “Laundry rooms” just as before....only this time around they'll modernize what is the most useful for the West to operate effectively. (Hide even more what they're doing there).
I also think Russia will continue to have managed conflict areas in Ukraine which will of course prevent Ukraine joining Nato - as it has done in the past.
Zelensky’s made known the Billions it will take to rebuild the country and he's depending on ‘other nations’ for the re-building of Ukraine. However he'll never get that much for re-building.....even if ear-marked for that. Leaders often say they will send $ which never materialize. Further with the worlds economic conditions now and expected to worsen they're not going to eagerly hand over funding.
I think the original Russian plan didn’t even involve any control beyond Donbas. Now, it is clear that NATO is seeking to use Ukraine as a proxy in an all-out war and also to release the frozen Russian assets to “rebuild” it.
Leaving Ukraine in existence is a potential of long-time instability for Russia.