Nassau and Westchester are too dependent on NYC to be separated. Suffolk might work, especially if its towns became counties. It is not the bedroom community Nassau is. One upstate entity is doomed. Schenectady, Rochester and Johnson City are very different. Though it would be interesting if the Southern Tier could allow fracking.
When I look at that map, it appears the New York City and Montauk portions are New York State’s butt.
Maybe I see it that way because I live in Central New York and have developed a contemptous attitude toward liberal downstate.