The reality is that Bournemouth would probably have a more profitable future by closing the terminal and becoming a general aviation airport with the lower costs that would bring. The MAG group did make an investment in a new terminal but as can be seen the money spent hasn't brought the passengers MAG had hoped for.
We are discussing the lack of GA airports in the private flying section.
Would MAG write off their £45m investment in the terminal and forget trying to recover that cost from attracting airlines and just go back to being a GA airport? I very much doubt it.
But isn't that what Bournemouth has been since the 1960's, a big GA airport that had a few charter flights and a few diversions - and for all the reasons given above, proximity of Southampton, poor transport connections,etc.
It would be a great shame if it was built over and lost forever.