They'll split the home schedule 3 and 3 next season, then probably 4 and 2 (more at Gillette) for '15 and '16, unless the deal is rewritten again:
http://m.sportsbusinessdaily.com/Daily/Issues/2013/10/11/...
Barring crazy attendance increases, I'd have to imagine they'll let that deal lapse for 2017.
Also, on a personal level, I'm very annoyed that we miss UMass next season.