I think this gen coming up, we'll see a resurgence of the PS brand. One, it will most likely launch at the same price as the NeXbox, maybe a $50 difference, so nothing like the $200 difference between the PS3 and 360. Even if the PS4 launches after the NeXbox, it will most likely only be ~6 months later, so nothing like the 1-1 1/2 years head start the 360 got this gen. So, if MS manages to win the US again, it probably won't be by as large a margin as it was this gen. Sony will also have a strong lead in EU and Japan.
As for Nintendo, I see them ending in 3rd. Even though the Wii U is only $30 more than the PS3 in the States, the PS3 is steadily outselling it. Even the Wii, which is selling poorly compared to the other current gen systems, is outselling it. EU already seemed disinterested in the Wii U from the start. And now the Wii U is selling less than 18K in Japan weekly, the one market fans thought would save the Wii U. And given the acceptable $299 price tag for a new system, I doubt a $50 price cut will do much to bolster its sales. Nintendo is most likely going to need drop the price by $80-$100 for it to have a great impact. But, if they do that, then they will probably have to sell ~8-10 1st party games to break even.
