All these ideas are great. But which mayor is going to implement them and WHY? New York votes democrats. This is a fact. So as long as mayor candidates are tied to a party, the pool of candidates is limited to those who have spent their life working up the ranks of the party. Born and raised politicians with no understanding, regard, interest or NEED to do anything innovative. The best mayors the city had were Giuliani and Bloomberg - both from "outside" the system.
The SINGLE MOST IMPORTANT change we can ask for is to allow everyone to become a mayor. We owe it to True Democracy! If it leads to ONE of these ideas being implemented, we have succeeded!
(Note: even if the same mayor is elected than otherwise would, the stiffer competition would provide them with a true incentive to do something good for the city!)