Because this generation went on for so long, I think there was a lot of overlap. Most of my friends at one time or another owned two or even three of the systems on offer. Therefore, I am not sure if the number of users actually grew.
In addition, recapturing the casual Wii and Kinect audience might be difficult as they have moved on to other things.
Therefore, I am going to guess that the numbers will actually go down.
Of course, with the current generation, variables like Netflix, motion controls, and so on were unheard of untested in 2005, so who knows.







