Is there provision within the Labour Party rules for a snap Labour leadership election? Who knows what might happen if Labour can install someone already somewhat well-known, and who simply isn't Corbyn, before early June? I'm not saying they'd win the GE but it could put a massive spanner in the works of the Tories.
Yes, the members may well vote Corbyn back in but roll the dice and see how many of his supporters might have second thoughts at the last hour.