Information from "Steven Knight Media - Fleet News Ramblings":

Stagecoach North East:
Now for disposal here are MAN/ALX300s 22012/77/78. Enviro 300 27508 is now in service at Stockton with Volvo B12B 54045 also now allocated there. MAN/Enviro 300 22579 is now in the Reserve Fleet at Slatyford with 22574 returning to the main fleet there. MAN/ALX300 22016 has moved from the main fleet at Stockton to the Reserve Fleet whilst Dart SLF 35194, which had been for disposal, is now in the Reserve Fleet at Slatyford with Reserve Fleet 34611 moving to the main fleet at Hartlepool.

Stagecoach Highlands:
MAN/Enviro 300s 22784/87 were in this fleet and in April were shown for transfer to Stagecoach North East. This move does not appear to have taken place. Does anyone know of the current location(s) of these vehicles please?