Johnson has a nuclear option left.
He could feasibly call a no confidence motion in himself. If he wins the no confidence in himself vote, that I think could be used as a trigger to have a GE.
As crazy as it sounds the opposition parties would have to vote they had confidence in Johnson in order to stop a GE. Now the question is, has Johnson got the bollox to call a no confidence vote in himself, it would be contrary to his character, but if he lost the vote and confidence was shown in him, he could take that as an endorsement of his Premiership and as he is a vain **** he might just do that.
We desperately need a written constitution as I don't think precedent would cover this eventuality. If you think it is confusing now, it might get a hell lot more confusing in the days to come, it depends on how desperate Johnson is to remain in power and all indicators are, he believes he was born to do the job as his inherent narcissism shows.
I know I will be derided as a Corbyn fan boy, despite me saying he is a little too right wing for me, but I have to say he has played the long game here quite superbly, he has the government on the ropes, hanging on for dear life and he can choose when to deliver the killer punch to end this fucking miserable excuse for an administration. Corbyn visibly grew in stature yesterday as Johnson shrunk into his little boy lost petulance routine. Johnson sewed the seeds for these events over the last 20 years and now his hopes and dreams are crashing down around him, it is glorious to see the **** get his comeuppance and its even better to see the miniscule Tory electorate get handed their arse on a plate for falling for the charlatan. He is succeeding in destroying the Tory party and for once I think I might even kiss him.