there may well be PLN broadband distribution to rural areas
Admittedly my techie knowledge of PLN is limited, but a quick bit of research suggests the same old limitations still exist that make it unattractive for commercialisation..... it won't cross phases, its quality varies depending on the electrical load on the lines etc. etc.
I suspect you'll more likely see flying pigs before you see Cisco Systems or Juniper Networks start bringing out carrier kit to drive PLN networks.
I understand the issues facing the rural divide, I really do. However PLN is not the answer. Fixing the number of issues constraining fibre deployment (e.g. the taxation of dark fibre by the government etc etc) would be a much more productive use of Mr Angry from the village letters.
As tempting as it is, I'm not going to be drawn into the old BT debate. But briefly, I think competition should be encouraged rather than "doing something about BT" ... which will probably only end up giving them another pie to stick their fingers into.... just like their artificial chinese walls that they operate at the moment ! BT need to learn the hard way.