I'm worried that there'll be a GE and the tories will win again thus securing May's deal! That's what I can actually see happening now if Corbyn keeps pushing for it. He's not interested in brexit he just wants to be PM!
There's an article, can't find it, suggesting May will call an election and that she's currently electioneering for it.
But then, the Tories couldn't have a manifesto saying they will implement May's deal. They might though if she went back and got a few minor tweaks. Aaaargh, is that the plan?