There's still a couple of more new buses coming into Gun Hill (Only 15 of 40 were delivered so far) so the hybrids are being sent back to Brooklyn to make room for the new units and to push out some RTS' out of Fresh Pond.
It was supposed to say 6202 at CS, my bad. Regarding 2147, I haven't seen anyone report it to be in service or stored at College Point so I'll hold on to that until I get an actual confirmation of it.
From the looks of things, the depot should be MCI free by the end of the year. 2185 has yet to retire, but it might still be alive as a museum bus once it retires.