I'm hearing the same narrative from several sources at the moment. It's this...
Mrs May will get the chance to kick the can down the road a bit longer, and we'll not leave in 2019 because we aren't ready and there won't be a deal in place. It's generally accepted that No Deal would cause all sides some damage in the short to medium term - although far more damage to the UK than any other individual EU27 country. The EU27 will grant us an extension to Article 50 so we can all take more time to work something out that works better. Mrs May will be hoping to retire before the next general election so she doesn't take the can for the failure to leave in a timely fashion or leave on better terms. Equally, she won't take the blame for putting the austerity-tired country into a self-induced heavy recession. The whole sorry mess will get blamed on Cameron.
I've no idea if this has any legs on it at all. What I do know is that a couple of people I've been debating Brexit with in another place (of all things, a music forum) have always been Leavers with decent reasons for leaving and the ability to debate without being insulting and back up their position with facts that they say gave them their point of view.
Now, they're hoping we do not leave - even predicting it - and have decided this narrative rings true for them. Why? They haven't changed their minds about preferring to be out of the EU rather than in. It's more that if the EU is the illness, they now believe the cure to be worse for us, the patient, in todays climate.
They just don't have any confidence in our current set of politicians (on all sides of the Brexit debate and in general) to be able to do a decent enough job to give the country a fighting chance of making a success of it. They think we should stay in the short term and take our time about leaving in the longer term. Some others then think that means we'll never leave.
Don't have a go at the messenger (me). I'm just relaying this because I'm interested to know if anyone else is hearing this and what they think. On both sides.