Breeze will go after markets that are unserved but where they know quantifiable demand exists through a connection. They'll also look at markets that were previously operated but rationalised by bigger competitors.a
White Plains (Westchester) had been previously mentioned for a Dublin route. Very plausible with current pre clearance facilities in Dublin. Though whether Breeze has plans for a base there is another matter.
We are led to believe that akin to a 321 XLR, the 220 could offer similar unit costs to a widebody. With 12 business seats, and a selective network, I could see them carving a niche.
On that size of aircraft I'd like to see Belfast getting another shot at a transatlantic route.