We use to update this quite a bit, but it has been several months so going to start this over fresh with some news this morning.

AMR, parent of American and Ameircan Eagle, unleashed their major restructuring plan today. OKC will be impacted. The plan calls for the pull down of the ex-TWA hub at St. Louis. In turn, OKC will lose service on Eagle to STL. Doesn't seem like any additional service will backfill this at all. They will be adding first class cabins to their Bombardier CRJ-700 aircraft, which may have an impact on OKC should they be operating here then.

AMR Corporation Takes Significant Steps to Face Near-Term Challenges - Yahoo! Finance