Wii U will not have a system wide Trophy/Achievement equivelent
There are no Wii U accomplishments that are system wide. They are up to the developers to include or not include. Scribblenauts Unlimited loosely has them in the form of "Global Starite Shards" which is like a giant checklist of global things to spawn and do in the game that aren't area specific.
Jackson on NeoGAF is Jeremiah Slaczka, the Creative Director and Co-Founder of 5TH Cell. He came up with the concept of Scribblenauts and a few other of 5th Cell's games.