surely not....
Part of the plans for the new terminal include a rail station (the main line to London runs alongside the airport).
Also I think some of you you miss the point about Flybe's business model. It is to offer a limited range of flights from local airports (eg SOU, NWI, EXT) to select destinations using lower capacity aircraft.
Southend has had too many false dawns in the past but there is a decent catchment within an hour's drive and Essex is stuffed full of timeshare/villa owners so a couple of routes to Spain, also Dublin maybe, could prove a winner.