Netflix (and Amazon Prime) will work on Pi. I've had 720p video with 5.1 audio working perfectly on mine.
Not released yet and will require a Kodi 18 build. See:Plugin brings Netflix to Kodi Media Center (unofficially, but without breaking DRM) - Liliputing
Kodi Is Getting A Proper Netflix Plugin - PhoronixBut you'll have to wait until it is released.
so how do i go about getting 18 on libre elec on my pi3