Little bit of shower thinking.
I'm interested to see where this all goes for Russia. I cannot see a way Russia "wins" this. If they try Crimea style referendums no one is going to recognise them and Ukraine will just continue pushing. If anything they'll push even harder to remove any legitimacy they try to have.
I also don't see any way for Russia to win. The "LDPR" will be pounded, they've got cities in ruins like Mariupol where people barely survive, there are bounties on the heads of traitors in Kherson, the list goes on and on. The Crimea referendum worked because Ukraine was powerless, but any attempt at organising a referendum in Kherson is going to be met with considerable resistance.
Would it be the end for Putin and his regime? Will he come down with a sudden case of accidental death? How much of the rhetoric coming from the Duma is genuine, how much is people protecting themselves from the Kremlin by towing the line? If it is a matter of "no Putin, no rhetoric" could Russia reset to 1991? End up with a moderate leader with less nostalgia for the USSR?
I think there's a very real possibility at this point of a military coup d'etat. I could see a military strongman coming into power, but what they do next is a big question. The Duma rhetoric is largely nonsense and not worth paying attention to, but I also don't see any way out for Russia. IMO, the only way that this ends is with Russia retreating after serious amounts of firepower makes its way to Ukraine, followed by implementation of Minsk-2 and the very reluctant agreement of Ukraine to fortify the Crimean border, perhaps even by transforming the administrative border into a sea border.
The problem is that Russia can't simply end it now. If they announce that the war is over, Ukraine will pound them with the HIMARS systems until they return to the 2014 lines.
Or will Russia realise its military has lagged so far behind NATO that it doubles down? All the siphoning of funds and rot is aggressively cut out, by judicious use of the FSB if needed. The wonder weapon projects actually get built, the whole armed forces get brought up to date and we have a full on return to two equally matched superpowers staring at each other, twitching?
Or do they just become a protectorate of China?
I can't see this happening. Unlike the Cold War, modern technology has progressed so much that Russia simply can't keep up. The corruption is so deep that it won't be solved overnight, and I think it's more likely that Russia implodes rather than reforms.