I believe the trial licence has been extended until the end of the year, so the London North service should be running by then.
There are going to be 5 or 6 North London TX sites instead of the 3 for the trial.
London South is on air on 9A and adding more stations to the MUX.
London West is also on air on 8B though its to weak for me to receive it in my North London location.
London NE and SE Essex should also be on in December, also on 8B