Instead of creating this unrealistic super commuter rail agency all ran my the New York State MTA/MNCR why can't "C-DOT" become a state funded transportation agency similar to that of the MTA but running commuter trains,buses and possibly LRT in the state of Connecticut?
Under this new version of C-DOT instead of paying the MTA it's operating it's own service and own equipment with it's own crews and employees. This new rendition of C-DOT would therefore have trackage rights from the State line with N.Y. into GCT. No C-DOT trains stop between 125st and the first station of the NH line after it splits from the Harlem line.
It would be almost the same thing that NJT and LIRR do when operating over Amtrak tracks in Penn Station.
It's not a vision or a dream, the above scenario could if the right people and politicians push it could become a reality. In short, C-DOT runs it's self just like New Jersey Transit runs NJ based commuter operations.
*Relation to original topic*
In the event the above ever materializes at that point extending service to R.I. and Springfield/Boston could then be brought up in a much more realistic setting.
This would alleviate Amtrak from running regional service and permit Acela Express service only.
This is the only way the dream and or vision of "Metro North to Rhode Island" could become a reality. Until then I don't see it happening - and Amtrak is the only game in town.