Prognostication has always been a difficult thing to do, more so as one goes further into the future.
I'm sure that 100 years ago, some people thought that all of those companies (the Jersey Central, PRR, Erie, DL&W, NYC, B&O) would still be around.
They were wrong, DEAD WRONG.
Why do you believe that Grand Central and Penn Station will still be around? Similarly, why would the els be gone? Would people still be using rail-based transport? Or will teleportation be widespread enough?