Russia is now fearing an explosion of violence, new maffia gangs, shootings, etc. at home when these people return home from the wat with their traumas.
If they organize, it could get very, very tricky for Putin to contain them.
My bet is that Putin will give away Donbass to the general in charge on the condition that the general will keep the barbarians within that new "democratic peoples republic" in the hope that they will not march on moscow.