Looks like Corbyn is toast. Well over the required 50 Labour MPs are writing letters demanding a new leadership contest because Corbyn campaigned so miserably for Remain. His disapproval numbers are sky high and he proved totally out of step with sentiments in the Labour heartlands. It's expected Labour will elect a new leader in September with the possibility of a snap general election by the end of the year.
The Blairites in the caucus have been looking to get rid of Corbyn ever since he was elected by the rank and file. Corbyn campaigned hard for remain, as his Twitter feed would attest. But no matter what he did it it wouldn't have been good enough for the Blairites. They're like their beloved EU, contemptuous of democracy and worshipful of the market.