What's the point?
G.FAST needs sub-20M to deliver the same speeds as GPON. You also need a powered Micro DSLAM at the distribution point. It is feasible only for overhead wires delivery, there is no way to do it in any of the more modern neighbourhoods where the wires are in the ground.
If you have gone that far you might as well run a fiber to the house and get over it. You gotta love telcos - they will bend accounting rules to make Douglas Adams proud. Planning for 5+ years depreciation on FTTC (and probably on this) when they will have to write off the cost in 3 years time while at the same time refusing to do the business case for fiber with 5+ years depreciation.
Granted - we all know the reason. Once fiber is in the ground it does not need 40k+ workforce to tend to it. It will just work. However, nobody up to board level wants a scrap with the union and has the guts to do that (in any country).