I love Madden, and have always gotten it on Nintendo systems. I'm severely bummed out.
However, this decision likely wasn't made because EA is a company made up of monsters. They probably don't see the sales expectations of Madden Wii U as worth it. Look at the Wii U userbase right now. It's mostly people like the ones commenting here thinking they are sooooo awesome because they dump on a series that isn't meant for them because they don't like football video games.
I'd love to say that EA will come back to the Wii U in 2014, but they never did it with the DS or 3DS, and it looks like they're skipping Vita this year, too.
So, does someone want to make an Eddie Lacey player for me so I can put it into Madden 13?