PS3 and Xbox 360 of the "next generation game machine", how long will it be to play with the Wii

In the stationary machine market, PS3, Xbox 360, and Wii, which were once referred to as "next generation game machines", are centered and appear to be in a stable state, while mobile game machines are evolving rapidly . However, about 3 years passed since the appearance in November 2006 (Japan), Wii also in November 2006 (North America), Xbox 360 in November 2005 (North America) which was released in PS 3 which feels new, I am doing. Indeed, how long will we play with this "next generation game machine"?

Details are as below.
How long will we be playing the Xbox 360 and PS3?

In CrunchGear, in response to the fact that Wii was cut down to 199 dollars, we will be playing with the current model of PS3 and Wii, which is about to pass three years since its appearance, and Xbox 360, 4 years after its appearance I am thinking about thinking.

Although Wii 2 is often rumored, the Nintendo GameCube, the predecessor of the Wii, was released in September 2001. Considering that it supported Wii for five years, Wii is also expected to be active from 2010 to 11 years. Although there are talks of PS4 and the new Xbox, PS3 is not expected to announce a new model at this timing when the thin type appeared and sales began to grow, and Microsoft is stronger than Xbox Live to introduce power to Xbox Live There is a feeling of pouring.

Perhaps Sony and Microsoft have already started work towards the next, but we can not play at that new game machine right away. The reporter of CrunchGear says that if World of Warcraft were to be said it would not be a problem at all if said to be playable on the same model for the next three years.

Actually, if you look at the graphics etc of PS3, even if the hardware evolves further, it is hard to make a game to keep up with, so it seems that it will be difficult for the transition to progress. Perhaps even satisfying with current handheld gaming machines if you just play the game may be affecting the stationary machine market.