Stephen Starr's Headhouse Square pizzeria Stella - you know, the one LaBan needed a New York pizza expert to approve of before awarding it three bells - is expanding into the space next door, formerly a Pilates studio, to add 30 seats and a 12-seat bar. So does a bar mean they'll start serving liquor along with wine and beer? Or maybe more wine and beer? A Starr rep says changes in the beverage program "remain to be seen. As of now, it's the same."