G.Fast is very different kit but strikes me as yet another an urban only solution. What is needed is some means of delivering at least Superfast access to over 10 km from the exchange. Copper can't do it, all the current technolgies drop below 24 Mbps at less than 2 km from the source.
What can do it is fibre to the premises, but digging trenches to install it is expensive, even in urban areas. As shown by they amount effort that goes into trying to make copper work for the last few hundred metres. In rural areas you could be digging several hundred meters of trench for one customer, that just ain't going to happen. This is "new install" I don't think they are allowed to use poles for new installs these days. Existing network on poles can be maintained, including replacing rotten poles. Would replacing Dropwire No.10 with one also containing four fibres along with two copper pairs be classd as "new install" or "Maintenance"? Still need to get the fibre to the DP though.