Farage believes it likely that the EU are going to make some adjustment to the backstop, so they and he can declare successful negotiations and try and get Treasonous Mays deal through the commons at the fourth attempt. I suspect he may well be right.
If Boris tries this Farage is going to put up candidates in every seat come the election.
If Boris doesn't try it, Farage is willing to cooperate to do as much damage to Corbyn as possible in the north and hopefully wreck Labours chances of winning a majority.
I actually think that we will end up with Mays dreadful deal possibly with a minor tweak or two. Worse than remain and worse than "No Deal".
You are likely right Rog, but I think that the Labour Party will come to the country's rescue and will vote against it purely on the basis that it is not their deal!
The Illiberal Undemocrats will also vote against as they are now committed to revoking A50 without a Peoples Vote, probably because they don't trust the people to vote the
right way.
The SNP will vote against as their preferred situation is for the UK still to be in the EU if and when they manage to hold IndyRef2, so that they can claim that the EU will let Scotland stay in if they vote for independence.
The other small anti BREXIT parties, Change (or whatever they call themselves), Plaid etc will vote against just because a deal takes us out. Then there are the ERG and DUP who will take a lot of persuading and the embittered Tory exiles.
So even if Boris can get a deal, I think it is unlikely that he will get it through Parliament, and unless he has an ace up his sleeve to get round the Benn Bill or whatever cunning plan this Parliament can come up with to stop us leaving on the 31st, we are at the mercy of the EU Council.
The sting in the tail of the Benn Bill is that not only does it direct the PM to ask for an extension, he has to agree to whatever time scale the EU offers!