Doesn't matter how powerful Durango or PS4 will end up being.
WiiU will be the base standard for most 3rd party games as it will have
a lead in console sales.
Publishers are simply not going to spend that much more money to improve
a game on a console if they dont have to. And why should they? I bet many
WiiU owners will buy even 1:1 360 or PS3 ports, for example, of CoD,
Assassin's Creed, Mass Effect, etc. because they are popular games.
The next console that will probably be released is the Xbox3.
Will it even launch the same year it will be revealed?
WiiU has had the benefit of being in the public eye a year and half before
hitting store shelves. So will MS miss Xmas 2013 for more exposure time?
What games will it have at launch? Nintendo is getting by without showing their big titles. How important is it for the next Xbox to have titles, showing off the power of the console, at launch? Not to forget, 3rd Party developers will also have more time invested working with the WiiU hardware. How important is it for MS to launch the most powerful game console vs the best selling?
For many, 360 or PS3 was a complimentary second console to the Wii. HD vs SD being the selling point. This time, the distinction between the consoles will be more blurred. All three consoles will be HD (though Sony might promote theirs as being Super HD).
And we have heard that 720p will be a target resolution for many developers regardless how powerful the console is. We can also expect that Nintendo's big budget games will give any first party game from Sony or MS a run for their money.
So, what does MS have to do, or offer, to get WiiU owners to also buy a new Xbox?
How will the Xbox3 do in Japan? If it does as well as the 360 or Xbox, then Japan as a market will not help diminish the sales lead the WiiU will have. And it won't be an attractive console for Japanese developers.
Achievements. How important are they? Unlike the Wii, many 360 owners have invested greatly in racking up achievement points. Will the new Xbox allow migration of achievements from the 360? If not, will many 360 owners wait before upgrading their console?
Most importantly, will MS sell a dedicated gaming console, or a multi-media set top box?