At the end of the day, with the right routes and the right marketing. There is no reason why manston can't operate successfully with pax. I have talked about the lack of catchment on this thread before, but I think Herne Bay has a point.
I don't believe Manston will ever compete with the larger London airports, but with the right management it will probably have a future.
Maybe the management should look at trying to woe the A380 cargo operators that won't be able to use EGSS in the future!