mii-gamer on 25 January 2014
Not sure how many copies ubisoft needs to sell to make a profit, but it costs $1.3 million (around) to port to the wii U which is fairly small.
http://www.gamesindustry.biz/articles/2012-07-23-ubisoft-says-wii-u-ports-costing-under-USD1-3-million
According to some in the comment section (of the article), Wii U ports needs to sell around 50k to break even, anything above that they are making a profit.
Hopefully, someone can bring more light to these figures.
