The rest are relocating from the current Sowton depot:

http://www.exeterexpressandecho.co.uk/DPD-Exeter-driver-recruitment-drive-ahead-new/story-27515710-detail/story.html

Not quite the thousands of jobs Skypark was expected to attract. The ambulance centre also relocated which just leaves the E.ON energy centre as the only new employment on the site.

One can see why EDDC were so keen to help the developers of the part-EDDC owned site by moving there. Indeed if the supermarket at Honiton had not been cancelled no doubt they would have been making their plans for a move to the edge of Exeter. So convenient for the Rugby World Cup!