I missed this comment by May earlier, when asked by Tory mp Heidi Allen if a second referendum may be required in the event of a no deal she said the following
We are working to get a good deal with the European Union. If it were the case that at the end of the negotiation process actually it was a no deal, that both sides agreed that no deal was there, than actually that would come back to this House, and then we would see what position this House would take in the circumstances of the time.
Obviously this is just wishful hoping on my part as Politicians just spout crap and rarely actually drop meaningful hints.
It does look like if there’s no deal she will just go to the commons and say, ‘well what do you want to do guys’. It will probably also be the point where she resigns.