CTRU or maybe Rutherford U? Sort of like BYU east? I doubt they're ambitious enough to do that but I've always wondered why they haven't.
On the pioneering, I totally agree with Sir82's take but with a slight twist. They will study the numbers of aux pioneers doing the 50 in the coming months. If that number drops below the running 3-5 year average, I imagine they'd consider moving it to 30 going forward (maybe in the 2012 service year or maybe starting with next April). I believe that the average JW will say, "no sense in aux in other months since I can do it in April at 30". I've actually heard many say they hope this becomes a permanent fixture and several speculate that this is a trial balloon.