1. EU has had a bellyful of Britain and prob wants it out
2. A hard Brexiter is introducing the deal. "Nixon goes to Brussels".
3. The alternative to 'this deal' appears to be No Deal & Corbyn electorally useless
It's possible but not in the way you thought: They may have won the right to lead Brexiters to capitulation. And for some Remain MPs to vote for it. And for EU to be complicit in the sell.
So the complete opposite of the new Farage/Baker credo that "No Deal is better than any deal".
1. I always suspected true No Deal support was shallow.
2. Brexit has been under siege. 'End of road' feel about it.
The battle on 'what kind of Brexit' then cranks up (with Remain/PV gone).
There's a chance Brexit can be softened further. Just needs Labour & Libdems to get their shit together....