Southside - from the Masterplan, para 3.49
"The remainder of Southside within Stockton’s area has planning permission for development of c.176,900 sq m (1,900,000 sq ft) of employment space providing for a mixture of aviation-related and general employment uses. This is known as Southside Phase 1."
Think it's an 80% aviation 20% general employment split (the planning section of Stockton Councils website is a bit temperamental so can't confirm). I would have thought that such an extensive aviation related development would have some impact on the operation of the airport rather than leaving it "pretty much the same" - not all GA hangars, surely?
Charters - the additional TOM Ibiza and BGH Bourgas were announced in April 2013 and then cancelled in October 2013, seems a remarkably short time for good news to turn into bad news. How cancelling 3 flights a week operating for less than half the year on such recently agreed contracts then supposed to halves your losses seems improbable.