An Irish pub is joining the restaurant lineup at Rockville Town Square, where three new eateries are now scheduled to open in the next few months. Finnegan’s Wake Irish Pub, the first venture from local husband-and-wife team Terry and Vanessa Laurin, will start renovations this month at the Gibbs Street space that formerly housed Carbon Peruvian Chicken & Grille. Rockville Town Square, which lost nearly a dozen tenants in the past 12 months, is now looking to entice diners with locally owned ethnic restaurants like the recently opened Ev & Maddy’s (European-style bistro) and Peter Chang (traditional Chinese). Also on the way are Miso Cafe (Korean/fusion) and Samovar (food from Tajikistan). Those two, along with Finnegan’s Wake, should be open by fall.