So it looks like Johnson will almost certainly call a snap election if MPs pass more legislation blocking/delaying Brexit tomorrow/weds. Current polls indicate that the Tories would win a big majority, especially if they form a pact with the Brexit party.
If Corbyn is smart, he'd vote against a GE but I can't see him doing so, and I certainly can't see him forming any sort of pact with the Lib Dems. Boris and Cummings will have played a blinder, the rest of us will be fucked.