Europe has and probably always will be Sony's saving grace.
The PS3 has outsold the 360 there and is only 4mill behind the wii. But the other, bigger, territories like the US will always prefer MS and Ninty, and i dont think this is gonna change with the coming generation. The WiiU is barely out of launch stage, hell, its not even out of its launch window yet, with huge games like Dragon quest and Monster hunter coming this year i have no worries about the WiiU's success. Meanwhile the Vita is getting increasingly shunned for games, with Capcom revealing they are not putting Resident Evil Revelations on there (the only console of this gen to not get it) i would say this trend is gonna increase.
In short... No.
Current Game Machines: 3DS, Wii U, PC.
Currently Playing: X-Com(PC), Smash Bros(WiiU), Banner Saga(PC), Guild Wars 2(PC), Project X Zone(3DS), Luigis Mansion 2(3DS), DayZ(PC)
