EXUSAIR: CVG is already an Air France destination. They started the route with their own daily Boeing 767-300ER service this summer.
Air France's CEO had announced Denver is on Air France's list. And it was reported by the Denver Post as well (source: the city's represents who visited AF).
But they have some destinations with higher priority, and destinations where they want to consolidate by increasing frequencies.
Air France US Network
ATL, BOS, CVG, EWR, IAD, IAH, JFK, LAX, MIA, ORD, PHL, SFO