22011-3 are reportedly leaving Stockton for Slatyford (22012 already has done, the other two may also have moved). The rest sound likely to be staying at Stockton however not all as part of the active fleet.
34401 is also staying in the North East fleet in a reserve allocation - depot not yet confirmed. Hartlepool's 34568/9 have already departed for West Scotland while 34606 will follow once repairs are completed. 34566/608 have entered service at Stagecoach South's Guildford depot.
RE: Stagecoach North East: Latest News & Discussion - October 2015