I'm using tp-link a7 as a main router in my two floor house. To extend the reach to a remote room I bought two years ago a tl-wpa7510 kit because of a promise for mesh functionality in the near future.
Now the promise is not anymore on your site and I bought a tl-wpa8631p kit because on the box and at your site is written it's a mesh device. But according to tpplc app and the device itself , the mesh functionality is not there.
By the way if somebody is interested the tl-wpa7510 was delivering better results in my case then tl-wpa8631p.
Any chance we will get it mesh on powerline adapters anytime ? or it's time to switch to more reliable vendor?