He's on a high priority list to get a rework. He's not getting a rework anytime before mid 2017 though. Current rework projects are Warwick and then Galio, and unless he gets picked by the team that's doing Warwick, he probably won't be ready by 2017 either.
Also a top Riot designer said that Yasuo Master Yi and Kalista are supposedly 3 champs that they talk about very much with a rework, just still haven't found a final solution, but will be getting reworks before 2017 season is over
:)