Yeah, I would love to see bus lanes extend from BHA to Seaver-Columbus; Warren to Nubian, and Columbia to Mass Ave. They are all wide enough streets to handle it.I really hope the neighborhood is more receptive to the idea than they were in 2009-10. That said, even if I were generally opposed, I would support pretty much anything if it involved a redesign of Mattapan Square so that buses don't have to go to Milton to turn around and come back to the station. That alone adds 5 minutes to the trip and is completely unnecessary. So, my take is build it as rendered, and fix the Mattapan Station access, and this will be a huge win for bus transit in that neighborhood.
Also, Seaver St. is definitely going to need to get this same treatment. That would give us a BRT corridor all the way from Mattapan Square to Jackson or even further.