That really is the million dollar question. I really don't think even Putin himself could give you an answer.
There really are too many possibilities
The war itself is ony heading in one direction, a Ukraine victory (in therms of getting it's land back)
Russia is militarily f***ed, it will take a very long time to rebuild their military to even what it was. I fully expect Georgia to attempt to retake South Ossetia at some point, The Russians may just leave Transnistria themselves. Who knows, we just see the disintegration of Russia itsaelf into smaller components in time. There are just so many things that could happen