The MoD said there were no plans to involve external contractors or "civilianise" RAF instructors
My sources tell me that there are discussions in progress investigating what aspects of PTS could be privatised.
My own experience is that the SF-attached PJIs were as keen as mustard, but held back by the attitudes of their "management".
Very recently I've been organising a parachuting and re-union w/e (static line only) - and surprise, surprise, RAF having none of it on any of their "manor". RN only too happy to help and have given us an airfield for 24 hours, no probs.