According to his twitter, he has visited and plans to visit the following:
Meal with Chef from 5 Corners Kitchen
He also mentioned Coppa and Oya.
Any other rumors as to where he will be visiting?
Maria's Pastry Shop
46 Cross St, Boston, MA 02129
151 Richmond St, Boston, MA 02109
257 Hanover St, Boston, MA
323 Hanover St, Boston, MA 02113
253 Shawmut Ave, Boston, MA 02118