I personally think that the scorpio and PS4 Neo will actually backfire on them.I mean, it wont necesserally causa the PS4 or XOne to lose sales, but these new "itinerations" either wont sell well because they will be more expensive, people will already have a PS4/XOne and/or will just buy the cheapest version.Plus all the potential problems about performance on the simpler models being sacrificed.In another words, I think there is alot of room for error.
As long as Nintendo play their cards right, such as having a great first party lineup, having a good hardware, getting (at least) some third party on board and so on, Nintendo will do just fine.
My (locked) thread about how difficulty should be a decision for the developers, not the gamers.
https://gamrconnect.vgchartz.com/thread.php?id=241866&page=1
