Agreed. Maybe not fail, but all will suffer big declines from last gen. The economy is in much worse shape, the graphic wow factor isn't the same as it used to be, and one by one developers seem to be ruining their big franchises by overproducing games and recycling the same formlua until people get sick of them. More and more of the big names are also either merging or going out of business, and this is only going to get worse in a worsened economy coupled with skyrocketing development costs in a desperate attempt to appease the graphic obsessed hardcore in order to keep the franchises relevent.
Nintendo has decided to return to its more hardcore niche Gamecube style of games which has alienated most of the Wii fanbase.
Xbone is way too expensive, will come with few worthwhile exclusives, and will be largely irrelivant outside the US.
The PS4 is selling largely on hype and brand name at the moment. All you have to do is look at the current PS4 lineup for evidence of that. Once that wears out, the sales will plummet unless Sony can manage to capture lightning in a bottle with an unexpected breakout game similar to what Monster Hunter did for PSP. But they can only sell off hype and old worn out franchises like Battlefield and COD for so long..
Sales are going to be something like:
PS4: 50-60 million
Xbone: 30-40 million
Wii U: 15-40 million
