When Russia joins the Imperium - these Regions will be autonomous within the Dominium.
Yes many of them are suitable to join as a dominium like the current Russian tradition will be kept in the Muscovite dominium. But I'm not sure that many western Russian regions would like independence. Maybe in western Russia there shall be a 'Russian Region' based in Moscow and another in Saint Petersburg. In the Imperium there would be several Cultural, Economical centrifugal areas.
This is natural around the great cities : Paris, Berlin, Rome, Moscow...
Outlying, barren and forested regions have no cultural/political power.
Also some Republics in the Caucasus should be on themselvs like Cechnia or Ingushetia. They are muslim based republics. Hence there I woulkd suggest to return to the Cossacks States. Here you has a link of Map of Europe 1919 which shows the Cossack Reublics down in the Caucasus along with the modern Georgia Armenia and Azerbaijan.In the Imperium religions will be left well alone - so long as they keep their place.
Any nonsense or meddling in High Politics from any religion, be it X'ty or Muslim, will be ruthlessly stamped out by The Elite.
The place for religion, any religion is firmly in the Dominium sphere.
In the Map you would see The Kuban Republic, Don Republic, Terek Republic and there was other called Astrakhan Cossack which never declared indipendence. With this organisation we will get rid of all problems in the Caucasus. On the other hand in the far east we cannot has any jewish republic and Tuvan Republic. We must have to design some organisation like the Tsars had organised in the Caucasus more than 100 years ago.Regions will find themselves in an organic fashion within the Imperium.
The Elite Army will be the sole arbiter of any Regional frontier disputes.
There are no longer any Jews in Birobidjan - they all left years ago.
Any where which you did not understand just tell me, somethimes its really hard to explain such issues in short!What one has to understand here, is that The Imperium is the central Absolute Authority.
The Imperium, consisting of an Elite from all Regions, will determine any grievances or disputes.
Regions will be completely free within the Dominium sphere.