This information comes from Tekken series producer Katsuhiro Harada…
“We’re not sure yet. We’re still evaluating the hardware and we’re currently just seeing what we can do with the basic elements that we need to make Tekken. We’re not that far yet. Some examples you could think of for Tekken Wii U could be for perhaps something akin to a strategy guide. Before now you perhaps would have to go into a specific Practice mode in order to learn about your moves and your enemy’s statistics. Now, you could pull up that data on the controller’s screen while you’re fighting an opponent. There are many possibilities for Tekken right now on Wii U.”
Most Wii U games are very early on in development at this point. Since nothing is even close to being final right now, we’ll have to wait until next year’s E3 to see what these games will actually be like.