Perhaps CO will create a 4th level like US. As a former US CP, I hated that they added the Plat level. It just made upgrading to First or buying an F ticket more difficult when you were 4 days out since previously CP's upgraded at 7-day window and Golds upgraded at 3 day window. My first thought was that if CO does not create a 4th level and just changes the requirements for Plat, there would be a lot of people who would revolt. Where would those people go, however? AA? They don't have a 75K level. US? They are just awful in my opinion and are giving away status, including CP status, just to get people to fly them again. DL is really the only option and I don't know if I'd jump ship to DL just to retain the highest tier status.