But after looking at numerous links, can anyone confirm what the privileges of the licence will actually be or when they will be announced?
FCL.105.A LAPL(A) — Privileges
The privileges of the holder of a LAPL for aeroplanes are to act as PIC on single-engine piston aeroplanes-land or TMG with a maximum certificated take-off mass of 2000 kg or less, carrying a maximum of 3 passengers, such that there are never more than 4 persons on board of the aircraft.
What is not so clear is what additional ratings will be available
While the night rating is quite explicitly available (FCL.810) for LAPLs, I can't see any restriction on aerobatic rating, towing rating, mountain rating. The flight test rating is restricted to CPL/IR. Instructor ratings are complicated as the LAFI was changed at comitology, and I think the upshot is that you need at least a PPL to get an FI rating on aeroplanes and helicopters. The instrument rating is not available to LAPL holders.