Ordinarily, I would agree with you Denio. The wild card this time with WTCB is whether Cumulus will make changes for the sake of conformity across the chain rather than researching and re-focusing. Cumulus has had a reputation in the past of just photocopying everything from one market to another. Of course, other chains and other stations have done the same, so it's not an exclusively Cumulus thing.
I agree with WWNU peaking about 3.0-3.2.
Columbia did used to be a big AC town. At one point 93.5, 106.7, and 100.1 were all AC, with a satellite fed 93.5 and a very very soft gold-based WTCB in the top 6, with 100.1 mid-pack.
That was with two CHR's: 96.7 and 104.7, and for a short time, 103.1.
Times do change, however. For the first time in my memory, industry pundits are saying AC is a failing format... after over 30 years of saying its the magic (or majic) bullet.