If May had any sense she'd resign and let the Tories pick a new chump Leader and Prime Minister.  Since she doesn't ...  

She has five days to come up with Plan B.  The only problem with that is there never really was a Plan A only Plan Arglety-Bargle.

I see three possible outcomes:

1.  Revoke the Letter

In order for the Article 50 letter to be revoked that stupid Act saying the UK will leave the EU on March 29, 2019 has to be annulled & good luck with that.

2.  Pass this Deal

After May goes back to the EU and the EU says, basically, pffffffftttttttthhhhhhhhh, A Miracle Happens, and Plan A is accepted by parliament.

And good luck with that

3.  No Deal

And I never expected anything else

 

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre