Following a review, there will be a change of electoral boundaries in 2018. Corbyn wants all sitting Labour MPs to then face a re-selection process by local Party members.
With 80% of his own MPs no longer having confidence in him, it looks as though his plan is to have them replaced with a new cadre of loyalists. Since he has stronger support at grass-roots level than in the higher Labour Party echelons, he has a good chance of success with this strategy. It is speculated that this could lead to a break-up of the Labour Party.
It also means that I think it’s likely that he believes he’ll be Labour leader in 2018 and then going into the next General Election in 2020. Since the leadership contest between him and Owen Smith is voted on by all Labour Party members, there is a strong likelihood that this will be the case.
After a couple of decades of centrist politics, both of the big British political parties are moving away from the political middle ground.