Which is probably what he has been after all along.
The back channelling has probably been about trying to get Ukraine to suck it up and not go to war in those areas (as in against "proper Russia" not sepratists).
Demanding Ukraine not join NATO because once those areas are declared independant (sort of) it's one less reason for Ukraine not to join.
For my own part, I don't want Ukraine to be used as a buffer between East and West. All that does is cause the country and its people to be used and abused by both sides. As slow as it has been, there has been progress in dragging the country away from corruption. With no real future other than effectively being a DMZ, it will fall back into extreme levels of corruption.