KLM & Vueling
Not in my opinion because SOU has it all covered. Any and all airlines that have tried to operate from BOH with a similar business model have failed. BOH's only option is low cost or medium/long-haul. Potentially a KLM AMS service would work.
I'll re-iterate what I said in an earlier post: MAG senior management need to get on the phone to Vueling and tell them they will double or triple whatever incentives SOU has provided them to do their rumoured BCN services in Summer 2012. The BOH terminal badly needs the additional footfall.