I think that Russia bit off too much in recognizing the Republics. Now, it would be a major climbdown to back down from that...Ukrainian sources reporting the demands from Russia:
It seems a more severe than previous demands requested by Russia and would address most reasons Russia started the war. It doesn't address the nuclear issue, or the presence of biolabs. Then there is the issue of cities like Kiev and Odessa which are historically Russian (according to them).
It looks like a no go from the Ukrainians for now, as they appear to be refusing any deal that results in a loss of territory (including Crimea).
I believe that Ukraine would agree to 1 and 2 (there was a law that had Russian as a co official language in a number of regions of Ukraine previously)...
With regards to 5, Zelensky is severely on the spot. There is so much evidence of significant penetration of Nazis in Ukrainian state institutions, even if they and others of the Far Right are presently electorally unpopular.
6. The Ukrainians won't accept this no matter what. It is ridiculous that they even insist on it. Peskov did not include them in the list on Monday...