This is going to be a strange day indeed, I'm expecting a vote of no confidence which the government will lose which usually would end in a GE being called but that idea will be rejected. Unprecedented times we live in.
I will qualify that statement for
@peteblue benefit it is not that they are scared of a GE it just gives BJ the same outcome as the prorogation. If he went to Brussels later on today and got an extension till Jan next year then parliament would back an election the day after. We all know he won't do that though, so his only option is to get a deal or resign.