With 45 key wards now declared it looks as though outside of London there is not going to be much of a swing since 2014 in either the Conservatives' or Labour's direction. The one big change that clearly is happening is that the UKIP vote is collapsing virtually everywhere and where it does it is usually the Conservatives who appear to benefit most.
Although there does not appear to be any overall swing from Conservative to Labour or vice-versa, there is already a pattern emerging whereby the Tories are advancing most in areas that voted Leave, while Labour is performing somewhat better in Remain-voting areas.
If this persists then while Labour may not be advancing outside of London, it may well make gains in the capital.