2021 is the big year. That's when Europe happens.
Selfishly, I want to see them start feeder service out of Manchester NH. I live close to that airport but have to go to Boston to fly my favorite airline. Along those same lines, I'd like to see some kind of service to Indianapolis since my mom lives there and it would be nice to not have to either drive 1100 miles or fly an awful airline's commuter service. I don't expect to see the latter.