Hi
I believe the T5 that is in Canada has engine problems, and may also be the subject of some sort of legal proceedings.
The AEW-3 at North Weald is XL500 (G-KAEW) owned by Kennet Aviation major work is expected to begin very soon, now that the Seafire has been completed.
The other Gannet you refer to is XA459 this was owned by a family and they were serious about getting it back in the air, sadly the family have had a few deaths and have put the aircraft on sale.