Well, I can only reiterate that if we talk about genuine liberal transformation, then (and I agree with you) it would imply strong nationalist trend. And it is not given that liberal nationalist Russia would accept its "recognized borders". We have in Russia nationalist liberal thinkers and, basically, their consensus is that while restoring "Soviet Union" or "Russian Empire" is certainly out of question, Russia should get back territories which were transferred to Ukraine and Kazakhstan under Soviets.
Now, my personal opinion is that this kind of genuine liberal transformation is just impossible. First, is that it implies a nation-building in 19th century sense, and in these days it is something close to LARPing. Second, liberalism implies the idea of strong so called "middle class", and the way world economy goes, due to technical advances, problems with resources and cultural shifts, it is being decimated. If anything, I'd say China and Singapore shows us the future (maybe not very rosy though).