My take:
Russia will absorb Ukraine, and since there is nothing stopping them at the moment probably Moldova and Georgia as well. Lukashenko will give Belarus to Russia.
Once all of these places have been assimilated, they are now all Russia. You can no longer support the citizens of these areas because they will all be Russians.
Russia will continue to isolate themselves and attempt to turn everyone within their borders against the west.
They already practiced cutting themselves off from the entire internet last year, so they likely know how bad things will get.
Russia can sustain itself if it wants because it is so large, so it appears they are attempting to build some sort of enclave at any cost.