So nintendo has announced their new "rewards" system replacing club nintendo. The announcement also included the reveal of the Nintendo NX.
Nintendo has partnered with DeNA to also start making phone and tablet games. Many of which is said to work across multiple platforms to include 3ds, wiiu, nx, computers tablets and phones.
The suspected release date for the NX will likely be 2017. Mr. Iwata from Nintendo has stated very little overall about the new system and that they will releal more in 2016 or 17 closer to it's release. Iwata also stated that it will remain a dedicated gaming company as will the system still focusing on games.
Rumors about the new hardware have stated it may be a truely combined portable and home console due to the continued success of Nintendo's handhelds over its own and other home consoles.
Full bacwards compatability with WiiU is also exspected though wii games may be delicated to virtual console games as we have been seeing the trend over the last few months.
It's a pretty fair guess that the system will have a better online and internal parts that will beat not only the current wiiu in power but other current home consoles as well.