here's an interesting article of the future from the developer perspective. sometimes we forget that it's the developers that make the games and lead the market:
http://www.gamasutra.com/view/news/187541/Nintendo_platforms_lagging_behind_in_developer_support.php#.UTBPa1eWMgQ
excerpts:
Only 4.6 percent of developers are currently working on a Nintendo Wii U game, according to the Game Developers Conference's 2013 State Of The Industry survey, which polled North American game developers.
This compares to the 13.2 percent who are currently developing a game for Xbox 360, and the 13 percent who are working on a game for the PlayStation 3.
And only 6.4 percent of the surveyed developers said that they plan to make their next game for the Wii U, while 14 percent are planning to target Xbox 360, and 12.4 percent for PS3.
Furthermore, around 45 percent of respondents said they're interested in making games for TV-connected PC consoles (such as Valve's Steam Box) at some point, while 37 percent said they'd like to developer for Android home consoles like Ouya and GameStick.
In comparison, only 13 percent expressed an interest in developing for the Wii U, while just 5 percent want to make a game for the 3DS. Next-gen consoles from Microsoft and Sony fared better, with 29 percent and 27 percent of respondents interested respectively.

Additionally, the graph below shows which platforms developers plan to make their next game for, after they're done with their current game:

The Game Developers Conference polled more than 2,500 North American game developers who attended the conference in 2012 or plan to attend GDC 2013 in March about their development practices, revealing several notable trends with regards to platforms, money, team sizes and more.