If you speak about specs in this thread please don't speak about games to use them as a proof for your points.
Seriously the Zelda demo may not be satisfaying for all the PC enthousiasts but I can ban bet that if a Zelda game looking like this comes out on Wii-U it clearly will sell more than Metro despite all the tech or graphics comparison you could make.
A game is a whole package. Looking at it for its graphics only is irrevelant imo... Maybe not if you really focus on the dev things used so you can describe it and the way it was developped but you can't say "I don't want a Zelda game like this because graphics are not really next gen" and you can't say neither "this Zelda demo is in HD with nice (lol for the technical things such as nice) effects so it's next gen graphics"
Acting this way the debate won't lead to anything interesting.
If someone says which effects the Wii-U can't render I will read this and thanks him. Some other posts are really good and this thread is more enjoyable than most of other Wii-U threads though