Last time they briefed it was going to be 40 resignations. Lots of Tory backbenchers still haven't got the message that Grieve (and Sourby and co) got which is that the only way to get the PM to do anything is to rebel, and keep rebelling.
We got lots of boasting last time, and not a single Tory resigned or rebelled who wasn't a usual suspect- so I'm not holding my breathe, and look forward to Richard Harrington, Nicky Morgan and the other useful idiots saying 'Lets give the PM one more chance'.
Interesting question- who is more naive, Tory remainers expecting the PM to act in the national interest, or Labour remainers expecting a lifelong eurosceptic to back a people's vote?