The next “political upheaval” will probably be the Autumn Budget, now brought forward to October 29th I believe.
There is a chance that Labour will vote this down, regardless of what is in it - to try and force another election before Christmas.
Hammond, realizing this - is likely to put a load of stuff in it that would have this budget rejected by TORIES, which would then put the Prime Minister out on a limb:
She would be forced to Sack Hammond, and regardless of if she does or not - Hammond could then challenge her directly for her job, offering to do a “fresh” budget from scratch, but this time with a Remainer perspective, which would gain the support of All Libdems, 75% of Labour, and 50% of Tories in the house.
I believe Hammond might back a backstab attempt at becoming PM this autumn! 
That’s my read on it, anyways. You read it here first. 
