Yeah as much as it would be nice, xbox won't be DOA. Look how many chumps they've got so entranced by what they offer over all the hell people have repeatedly gone through with the 360s hardware and paying up a fee to get multiplayer in their games and the buyers keep coming back for more happily bent over. They could blow their entire foot off from the ankle if not higher and they'd have enough warm bodies to keep them just fine.
If anyone who may have a problem it's Sony. The company has been bleeding money on the whole beyond the PS side of things, they're in third in this dying generation regrettably thanks to their ignorant and arrogant sales tactics and developer handling, and look how long and how much had to be stripped off the PS3 to get it profitable. Then there's the Vita, you can fill in the blanks on that one. I'd rather not see them crater but you can only live so long acting as they do even if they do control stuff like Uncharted, God of War, Sly Cooper, LittleBigPlanet, ModNation Racers, and some other gems. I'd rather them not choke, but I'd see them as the first to eat it.
Nintendo is Nintendo and no matter what know it all analysts like Prachter says, they're not going to die, they're not going to go away, fold up their console operations, or any other of that crap. Nintendo is a brand, the brand of the ages of gaming that people first run to for family stuff and specifically a long line of first party stable creations that keep getting successful rehashes people enjoy while slowly churning out new IPs that get gobbled up fairly successfully well, and you can even include in the slow immersion of Japanese stuff (Fire Emblem, Advance Wars, Custom Robo) into our language to play. Sure they've pissed off some third parties probably irreparably, while others like the d-bags at Epic have it in for them admittedly too, plus the Wii didn't help things from a visual standpoint (while making them bloody rich) yet they're still kicking and profitable on the whole system after system. Nintendo with the N64 and somewhat even with Wii proved they needed little third party true honest support and backing to live a profitable existence. When you figure they're also still handily dominating the dedicated home portable market still for another generation, they're fine. Not only are they fine, in a way, when you look at 1st/2nd party generated titles they still ooze that diversity of created styles of games from that earlier cartridge based era that's rapidly dying a sad and mass commercialized stinking death today from the stifling high dollar creation model that's there now giving us safe FPS, sports, WRPG and a few other genres. With Nintendo you got your platformer, adventure, action, RPG, strategy, mini game, party game, shooter, action rpg, arena combat, simulation and more.