Weekly Shonen Jump magazine has revealed that Shanks will be a playable character in One Piece: Pirate Warriors 3. Players can take advantage of his sword techniques as well as his three Haki techniques that Shanks can pull off. According to the scan, this is the "last piece" of news we'll receive as far as new updates go. The game releases next week in Japan so I doubt there's anything left to reveal anyway.

One Piece: Pirate Warriors 3 will release on PS4, PS3 and Vita in Japan next week on March 26. The game will be coming overseas sometime this summer along with a Steam release.