LBA is an airport that has done an incredible job expanding over the past few years. But it can not go on for much longer. The runway is dreadful, terminal (check-in, passenger waiting, baggage handling and boarding facilities) is farcical and you brave the traffic on the "bigger" road or wind your way through country lanes and residential roads to keep the wheels turning (unless of course your come from Pool) to get to the place. The topography of nearby land and runway direction regularly place operational limits on the aircraft using the place. So I'm suggesting it has got as far as it is going to go. It might be able to handle a few more people, but not much.
It is an airport designed to serve the people of Leeds and Bradford and the surrounding areas. And it does that well for holidays but for people who want a bit more, you will have to fly to a hub or fly from another airport. You should not expect much more. To jump to the next level means proper access, proper parking, a proper terminal and flatter, smoother runway that points in the right direction. Making a business case to an operator to start an additional service with the current offering will be difficult.
PM