I do think that the ULEZ played a big part in Labour not getting a big enough swing to win the seat. Even the labour candidate changed his tune part way through the campaign to come out against Khan's proposal once he saw the way the wind was blowing. I would imagine Labour will lean on Khan to modify his plan before the GE as Londonshire is crucial to them winning the GE.

I would imagine that the Tories will concentrate their resources on winnable seats only to try to prevent a Labour majority so yes that almost certainly means abandoning the vast majority of the red wall seats