A realistic master plan would be beneficial. The current one - a decade old -was wildly optimistic as for that matter were a number of other airport master plans published around that time. If you believed them CWL would be handling 4.5 mppa now and Exeter nearly 2 million.
Debra Barber is using almost the same words as the previous airport chairman, Lord Rowe-Beddoe, used a couple of years ago when speaking of ME and USA scheduled aspirations.
I believe that the ME would be more useful than the USA but, if it's not one of the MEB3, there would have to be a partnership of some sort to enable onward travel to Australasia and Asia which is a huge proportion of the passenger traffic that flies from the UK to the ME.
I agree with regards to ME over the USA I think this would be far more beneficial, I remember the airport was in talks with Delta well which I think is a good 5 or so years ago now which was to be a daily JFK service at the time, I think there was a stumbling block when the airline was looking for a financial commitment from the WG to finance any potential losses in the first 3 years of operation I think it was ? However talks didn't progress presumably as the losses would have been two great, either service I imagine to New York or ME would require significant support financially.
I think the Norweigan model is an interesting one, one I imagine both CWL and BRS are monitoring both in regards to short and long haul.