EA seem to be updating the page at the moment. Will update post when EA post more.
Not officially announced, but a few people on twitter are saying EA accidentally posted it on the Sims 3 website and removed access a few minutes later.
They won't let you access the page anymore, and If you try to access it now, it will redirect you to a login screen, which loads nothing. My guess that Members will be able to read about it first.
This isn't a huge surprise, since EA have reported to have been working on a Sims game for Wii U since 2013, and some sites put it up for preorder by mistake.
It is weird that it took so long that we already have The Sims 4
From what people are saying, they said it's the Wii version of the Sims 3 in HD with "exclusive features".
I hope Nintendo pushes out the NX fast af, and they make it backwards compatible with Wii U games. There are a couple Wii U games I want to play, but I reFUSE to buy one.