As you may know, the Lexington Line and the 7th Avenue IRT have replaced most to all of their trains with modern cars by Kawasaki and Bombardier, along with most Canarsie-Line L trains. *The new, climate-controlled cars feature electronic voice announcements heralding the train's arrival at each station and listing available transfers, as well as what the next stop is. *The progress can also be monitored on overhead maps, with a small lighting diode denoting each station on the line. *Lit diodes denote the remaining stops. *Marquees state the time, the final destination of the train, and the name of the next stop. *All cars also feature small paintings from various artists.
My favorite feature about the new cars, however, is that they were custom-designed to take into account the craftiness of New York graffiti artists. *All surfaces can be easily wiped clean of paint or ink, and the window glass has a special polymer that is resistant to etching acid, which is what graffitists use to scratch tags or messages on the windows. *However, now some people have taken to using knives to carve into the drywall at the narrow ends of each car; but I think even that can be remedied.
I haven't heard much about new fleets for any of the IND or BMT trains, or for that matter the IRT 7. *My guess is that they won't be ordered until the MTA completes several projects which will include the addition of extra stops: the extension of the 7 west to the Javits Center, the extension of the N east to LaGuardia Airport, and A, C, J, M, and Z connections to the JFK Airtrain. *My guess is that the F, B, V and D trains will be the next to get upgraded, or perhaps the Times Square shuttle. *Then again, most to all of those might hold out for replacements until the Second Avenue Subway is finished; it depends on the shelf-lives of the various models.