In spite of Netflix not making any official statement on this update, reddit users noticed the changes after a new app version was made available
https://www.reddit.com/r/wiiu/comments/3io0ps/netflix_updated/
- interface changed
- profiles are available
- auto-play has been added
- you can start a movie or TV show back where you left it off
- the "slowness" has been corrected
http://www.slashgear.com/wii-us-netflix-app-gets-complete-overhaul-more-features-28399906/
Nintendo is selling their IPs to Microsoft and this is true because:
http://gamrconnect.vgchartz.com/thread.php?id=221391&page=1