I'm guessing it got moved over to the new pole, seems a little odd how they have all the through bolts already installed without anything on them. I doubt Darren knows what happened to this, being in Pennsylvania.
This pic was taken about a month and a half ago and it still looks like this now. The small borough that this is located in has a small power company and the new pole has been there for over a year,they take their time when it comes to new installs around there as most of the power infrastructure is over 50 years old. They have been upgrading some of the power system recently. I think they will move this fixture over eventually instead of scrapping it