My general theme is to expand domestic service in/out of BOS, saving us from JetBlue and Cape Air:
1) Turn BOS into a regional hub to northeastern midsized cities (Portland, Burlington, Albany, Ithaca, Syracuse, Buffalo, etc.), via American Eagle if that helps.
2) Lots of places east of ORD/DFW that should have nonstop service to/from BOS, like Cleveland, Cincinnati, Columbus, Indianapolis, Baltimore, Raleigh-Durham, Charleston, Ft. Lauderdale, Austin, etc., etc.
3) ACK and MVY in summer