By my count there are 40 or 41 complete trains of R46 available including the AA sets. This does NOT include the sets that haven't been used since August, which by my count is 3. The count of active + spares above comes to 22 + 5 + 7 + 2 = 36. So, 44 trainsets were assigned, 36 are truly needed including spares, that leaves 8 trains of R46 ready to be retired, cannibalized, or just stored somewhere. On top of that I believe there are 3 trains of R211A on site, with one being put into service today. And of course more are on the way.
All this to say, they have to be starting soon to move these. Maybe CI needs some, but maybe not, and maybe some CI cars are on their last legs and should go first. Having been on the A a few times recently though the Pitkin ones are in no better shape, maybe even worse. I'm located along the Q and I see those all the time and they are in bad shape too.