The optimism over Ørsted’s plan for an installation site is real. But New London and State Pier have been down this road before. That could be about to change. A group representing shipbuilding and railroad interests announced plans for the Blue Ribbon Line, whose vessels, faster than anything afloat, would cross the Atlantic in four days. Time would be shaved off the trip by basing the line in New England or Long Island, a day closer to Europe than New York. The main contenders were Montauk and State Pier.