I am presently GM on DL and have for some years speculated that the airlines will move towards a status system based only a revenue. I have feared that day because I by mostly cheapy fares and will surely loose my FF status if they switch. Hopefully I will be doing more and more business travel and have full-fare or close to it.

I wonder how the transition will occur? It will obviously re-write the rules. I also wonder if the will still use miles for awards but revenue for status?