If you look at timetables from Lackawanna days, you will see that commuter train times were much shorter then. And, these days, the M&E is much more congested than it was then. The route in PA from Slateford to Scranton is not a high speed railroad. Neither is the M&E. About the only place the train could go fast is on the Cutoff.
Sometime earlier in this thread i calculated how much slower the train would be today than in Lackawanna days.
If the Boonton Line were still intact, it might be used to speed things up but sadly it has been sacrificed to build I80.
Suffice to say that, if you take the time from Port Jervis to Hoboken to be the maximum possible tolerable commuter trip, the Poconos (and Scranton, of course) would be far from commuter range.
Does Amtrak plan to offer food service on this route?
I doubt if this route would get enough patronage to justify its construction.