This may be common knowledge, but I was under the impression that the director's cut was exclusive. Turns out the director's cut version is also on the PS3 and 360 and costs $29.99 while the Wii U version costs $49.99.
*edit*
Just Googled it. Also looks like the PS3 version will use the Vita while the 360 will use Smart Glass to utilize the Wii U gamepad features.
http://www.destructoid.com/deus-ex-hr-directors-cut-no-longer-wii-u-exclusive-256072.phtml