Just a bit of a follow-up. The runway is open, the new parallel taxiway is (mostly) open. The runway lights did work before they installed a PAL but now they might work, or they might not. I've not seem them on since mid-February.
ERSA says "RWY 11/29 - AD LGT on HN", except they aren't. Nor is there an entry for a PAL frequency in either the current ERSA entry, nor the March 25 revision and there is no NOTAM about the lights.
The AD Manager says they can't update the ERSA until CAsA sign off on the lights, but didn't twig that not having a NOTAM saying they aren't on HN could be an issue. I think they eventually understood the risk, but if you plan night ops into Scone, it might pay to phone ahead to find out what lighting is, or isn't, available.
FWIW, they advised the PAL is going to be on the CTAF frequency.