The Prevost X3-45 bus is here. They run out of the Yukon Bus Depot (2400-2449) from Staten Island and Ulmer Park in Brooklyn (2450-2489)
Here's some examples of the new Prevosts.
Also, here's the newer MCI D4500CTs. 2251-2285 out of Queens Village and 2286-2304 out of Charleston,Staten Island