Speaking of CT's various lines, one has not been mentioned: the upcoming New Haven Line service to Penn Station. Surely the state will need to find more rolling stock to serve this extension as well. I wish they would be more forthcoming with their service plan so we could have a better sense of how service to Grand Central will change when this project comes online. I can't believe that the current M8 fleet will be sufficient to serve both branches. And how do bi-levels fit in to all of this?