You shouldn't be surprised, because that is exactly what will be happening. It's a stated goal on both CO's and UA's websites. The plan is that within 2 years, they will be one large airline with one mileage program. In the meantime, they continue to operate as two independent FF programs. However, while Mileage Plus has more members, OnePass is considered (by many) to be the better program. Either way, it's being debated on both forums which will survive and/or how the new program will look. I personally am hoping to see OP with some "enhancements."