The city has gained population slightly (rebounding from a low of 7.1 million in the late 70s to 8 million now), while upstate has become rapidly depopulated, and the traditional suburbs have stagnated (due to low birthrates, high cost of living, and the resulting outflow).
So NYC will have even more clout in the legislature. This will cause an even greater hemorrhage as left wing policies destroy the economy there. What will be left upstate will be a larger version of Vermont.