Looks like Channing Tatum will be playing Gambit after-all. According to reports from THR, actor Channing Tatum closed the deal today with Fox to play the titular character in the 2016 film. While there were reports earlier in the week that Tatum was going to turn down the part, that's not the case anymore.
Tatum and the studio did hit some rough patches while coming to terms, including backend compensation. There's no news yet on how involved Tatum will be after this solo film. Fox does see Gambit as a character much like Wolverine that could be an anchor-point in their cinematic world, so there's a strong possibility that Gambit will be around for a while. Rupert Wyatt will be directing the film and the release date is October 7, 2016.