The rumored bank that was coming to Park Slope’s Seventh Avenue is reportedly still going to happen. Last week, a sign went up in the window of the closed D’Agostino’s market on Seventh Ave. advertising the availability of 4,500 square feet of space. The latest Park Slope scuttlebutt is that a bank (the early word was Bank of America) is still coming, but that it will mostly occupy the space that had been a Gothic Cabinet Craft storefront. The space was always said to be destined to be divided between a bank branch and a retailer. The two storefronts have been empty since spring.