Thanks, Reformed!
Had a chat with YouFibre today. They said the installation would follow the same route as the current copper, assuming there was ‘space on the pole’.
I’m a little concerned because my copper line exits the front of the house at hip-height, runs up to the eaves, then all the way across the road to a pole on the other side. And that pole serves about eight houses in total, as well as another pole that’s on my side of the street (and much closer).
I’m sure they’ll figure it out somehow. Roll on April!