The Wifi Alliance has a proposal to deliver a "broad footprint of uniform wifi service"-- EasyMesh, a standard bringing together the mesh networking technologies employed by different vendors.
As the organisation puts it, EasyMesh will provide customers and service providers with a selection of interoperable devices across difference brands to ensure wide and reliable wifi coverage. The technology coordinates multiple access points into a "unified and intelligent" wifi network able to autonomously aid all areas of the home for complete coverage.