I'd love to see more of Providence, Manchester, Portland. They are nice cities with decent lodging downtown with bars in the area. Bridgeport is a total disaster and Worcester had a lack of bars interested in showing other games on ESPNU. There were a few bars in Manchester this year real willing to put on other games. Also, all three have regional airports to get people into and are fun New England cities within 1:45 of Boston.
The problem with some of these other cities like Toledo and Rochester is difficulty getting to and not having much to offer people. For example, it would be easier for older fans to convince family to make a weekend trip to Portland, Maine or Providence than to Worcester, Bridgeport, Toledo, etc.
Another idea I'd like to see them consider is having two regionals at each site. In other words, one regional go Thurs/Sat and the other regional go Fri/Sun at both sites. I know it would be difficult to get a place to give up four days, but it would be doable especially at AHL arenas such as Providence, Manchester, Worcester, Portland where they could just have the AHL team play elsewhere for weekend.