It took a while for Vita to sell in Japan, it'll probably be the same with the PS4 also. Especially while JP companies are still focused with PS3 rather than releasing stuff for PS4.
In terms of WiiU or PS4 in the future, I'm going to believe WiiU is going to be a Nintendo game only machine and
PS4 for everything else. After being released for a year, there's a limited amount of 3rd party with WiiU, just like the later years of Wii, so I don't think it'll change further on also.







