Will any new game platform this generation have a successful launch?

[Signalstar]

So far into this new generation of game systems we have 3 new platforms that all have gotten off to rocky starts. The 3DS, Vita, and Wii U all had less than stellar launch periods. Is this a worrying trend for the industry or can another new console break the streak?

The PS4? The next Xbox? The Steambox? Ouya? Will any of these have a successful launch? 

Obviously "successful" is a subjective term. For my purposes I would define a successful launch as a console that maintians healthy demand in its first few months with a least a few high quality games at launch and a steady stream of releases in the month afterwards. Thoughts?