Interesting. Net positive for Silvers and Golds.
Net negative for higher-spenders with the loss of PQM for premium fares.
Net neutral for 125K flyers (assuming 1 GPU = 2 RPU).
Net negative for 150K flyers+ in loss of RPU. (neutral for GPUs, as now 1 per 25K versus 2 per 50K).
In theory, better upgrade chances via CPU for remaining 1Ks, but we will not see effects until February 1, 2020.