Sad to hear this for Ealing. I understand the new leader of ealing council has had a senior role at commonplace (he may still do). He has said all other LTNs will go to a CPZ style referendum. It will be interesting to see what happens. Needless to say, I think this is the wrong way of doing it.
As always, credit to hackney, camden, islington for sticking with LTNs, as well as others like lambeth where I assume we can expect even more with their recent leadership change.