Also, not sure how a VonC will stop Brexit at this point unless it can somehow include a revoke A50 clause or Parliament can put together some kind of entity to go to the EU and be granted an extension and then pass legislation on that - all in the right order, all within 2 weeks from the Queen’s speech in October - this is exactly why Johnson prorogued
There’s a slim chance that the courts will strike down his prorogation but there’s no guarantee that he’ll reconvene Parliament with enough time to spare
I honestly think it’s going to come down to an emergency revoke or a No Deal
but who knows, the outcomes are pretty hard to call right now, whereas the ticking clock counting down to October 31st is pretty straightforward