The Wii U version of Splinter Cell: Blacklist will be released without offline co-op, it has been revealed by Ubisoft.
Producer Lui Jun told NintendoLife that the reason behind the omission was to ensure that the Wii U port shipped at the same time as the other versions.
"In order to ship at the same time as the other consoles, we unfortunately weren't able to delve into this feature," Jun said. "But we think Nintendo gamers will be really excited to get the game at the same time as other consoles."
Co-op missions can, for the most part, be played by the solo-player (only four of the missions require a human companion), and given that players will be able to play online, it's not a huge issue. Unless you're an offline completionist, that is.