Though it’s still more than two years away, the disruption of L train service between Brooklyn and Manhattan is a’coming, but all we really know so far is that a great number of people will be inconvenienced for between 18 and 36 months while the MTA works to repair damage caused by Hurricane Sandy to the tunnel running between the two boroughs. The rest of the plans to accommodate offloaded L train riders—shuttle buses, new ferries, increased service on other subway lines, and so on—are still very much in hypothetical stages, with neither the MTA nor the Department of Transportation able to offer many details on how, exactly, that’ll all work.