As expected following a retailer slip, Square Enix is indeed bringing Deus Ex: Human Revolution to Wii U in 'Director's Cut' form. What is unexpected, however, is that it supposedly does actually rework the game a little, including improved AI, "visual improvements", and a reworking of the widely-disliked boss battles.
DX: HR DC uses the Wii U GamePad for, and I quote, "touch-screen hacking, interactive map editing, augmented sniping, grenade throwbacks and many other neural hub enhancements."
The DLC chapter Mission Link, which was essentially standalone before, is now "integrated seamlessly" into the main game, as is the DLC mission Tong's Rescue. The announcement also boasts of "refined game balance and combat," Miiverse integration, and developer commentaries and in-game guides. Hey, this is quite a lot of shiny new things! Now, please, pretty please, could some of them find their way home to the PC edition?
The boss fights were awfully out of place in HR, simply combat arenas which require straight-up fighting. You could simply run away from bosses in the original Deus Ex, if you wanted. As well as being out of place, they punished players who were equipped and augmented for sneaking or social approaches. How exactly they're different in the DC is a mystery, with Squeenix only saying they're "overhauled."
Square Enix isn't any more specific with a release date than "soon". If you want Deus Ex newness now, the publisher also has the OC ReMix gang jazzing up the very first Deus Ex's soundtrack for Deus Ex: Sonic Augmentation. To my ears, they've mostly added lots of noises, but perhaps that's your bag.