Been thinking about this and man, I really can't see a bright future for those guys.
- It's pretty foreseeable at this point the Wii U isn't going to be half (perhaps quarter) the success of the Wii. Same situation with the 3DS to the DS.
- In 5 years tablets capable of running pretty robust games will be cheap and ubiquitous. Easily at 'games for kids' level. Ergo; they are the new handheld market.
With these two things in mind, what happens to Nintendo? Do they suffer a SEGA-like level of downsizing? Because honestly, I really can't see a way out for these guys this time.