About a month or two ago, Crytek announced that Crysis 3 was running fully on WiiU. But, it will not be released on it. Today Crytek CEO, Cevat Yerli, had this to say, "There is no WiiU version due to a lack of drive between publisher EA and Nintendo.....It’s a purely business decision. I’d love to see it on Wii U, but what I love to see and what gets done at the end of the day are two different things. Even so, I could initiate it but someone has to sell it, right?"
I remember something from last year that came to my mind when I found this.
The WiiU's Nintendo Network was in development. EA asked Nintendo if it can be based off of EA's Origin. Nintendo said no. Soon after some of the EA launch titles were removed form the WiiU launch.