A few days ago, several media outlets reported a quote by Call of Duty: Ghosts Executive Producer Mark Rubin, taking it as a confirmation that the game would be ported to the Wii U. The relevant quote (that you can see in the video at the bottom of this post, starting at the 13 minutes mark) was as follows:
We’re not actually talking about the Wii U yet (…) Because we want to keep it mysterious. (..) That’s PR guys, that’s not my fault.
Those that took it as a reason to expect the upcoming FPS on Nintendo’s console sooner or later shouldn’t hold their breath as Mark Rubin, interviewed by GameIndustry, basically did a full 180, denying any knowledge of a possible Wii U version.
Ha! You know that’s funny, because I don’t even know the answer to that. I swear to God, I don’t. I was trying to say in the interview [that] I really don’t know and I’m not supposed to talk about it. I’m not supposed to talk about the fact that I don’t know.
When pressed by the interviewer on the performance of a hypothetical Wii U version, he went on to guess that looking at the current hardware specs it would be more or less in line with the PS3 and Xbox 360 versions and possibly even “a little” better.
Of course that was explicitly hypothetical reasoning, and the official word remains that Call of Duty: Ghosts is going to be released only on PC, PlayStation 3, PlayStation 4, Xbox 360 and Xbox One. Lesson to be learned: don’t take an extremely vague sentence as official confirmation of anything. It isn’t.