EasyJet could operate a smaller aircraft from Bournemouth to match the demand but at present they do not have any Cessna 172s in their fleet!
Please get real about Bournemouth's future. There is a very small catchment area and a terrible transport link situation.
We have friends who live in Poole who can get to Southampton by road in under 40 minutes and by rail in not much longer-direct to the airport. They would not consider Bournemouth at any cost.