I have been closely tracking a flight this Wednesday for a friend who is a Gold. IAH-EWR, the past 2 days have shown A9 F0, except for this AM when F2 popped up for only an hour or so. I think all the flights to EWR were A7-9, F0-1 until 0015 CST when EVERY FLIGHT (out of 8) went to A4 D4 F4 Y7 H7 K7 B7 V7 Q7 T7-Even when many were Q0 T0. Of course NO EUA. The only thing I can surmise is that CO wants folks to use their miles to upgrade. Of course this is great for non elites, but it sucks for elites. We'll see.