I predict that, by 2020 most if not all of the current regional airports will have gone. They have all been losing passengers since 2008 and philanthropic owners are hard to come by.
Skypartners, I will accept that my interest in this game is much more ivory tower than yours, but I don't quite share your pessimism, as we have discussed before.
The usual economy of scale logic doesn't always work with airports - bigger means much more complex structures, smaller means easier to use. By 2020, I'd expect MME to be gone for certain, and wouldn't have high hopes for NQY, BOH, HUY, DSA, LDY, NWI, and PIK. CWL and the other Scottish airports will be propped up by subsidies.
Anyway, maybe that's for another thread - I am not a betting man, so I have nothing to lose by speculating on CVT having some form of pax flights in the future.