One priority would have to be getting the NY state government out of the city’s public transportation organizations. Right now, everything is subject to state politics because the state controls the MTA.
Another would be making motorized individual methods of transit more and more painful and expanding bicycle/pedestrian infrastructure (this is often two birds with one stone). This will get the public to support politicians that make public transportation the priority.
That’s not a policy priority or choice - NYC bankrupted mass transit decades ago and the bailout consisted of a grand merger between the bridge tolls and transit. The current situation is a result.
It’s a public authority secured by bonds. Unless the feds decide to pump billions of dollars into NYS/NYC, nothing happens unless the organization is insolvent again.
How does shoving more people into the subway system help? The income? The trains are packed on the 'in the office ' days like Tuesday, Wednesday, Thursday. And pre pandemic the 45, F and other trains were rush hour torture. Now more apartments are built. But the trains run less frequently.
But we're installing elevators everywhere and making all stations accessible, and that, plus the ridiculous running of trains overnight, are priorities.