The Metropolitan Transit Authority is rolling out a new wave of cell and Wi-Fi service to subway stations in Manhattan and, for the first time, Queens. The expansion is the second phase of a seven-part plan to connect the city’s network of stations. In this stage, 11 wireless-enabled stations in Manhattan and 29 in Queens will be added, including hubs at Grand Central-42nd St, Herald Square, Court Square, and Jackson Heights-Roosevelt Ave. Early last year, an initial phase brought 36 stations online in the Upper West Side and parts of Midtown. All 277 underground stations are expected to be retrofitted for wireless by 2017.