720 is the perfect sweet spot for streaming online without issue.
When I use Apps like Netflix, Hulu Plus, Crunchyroll on PS4/Apple TV, I have absolutely no issues streaming in 1080 (hardwired and wifi). Now if I go to my laptop which I've maxed out spec wise, Using Netflix and Hulu Plus to stream at 1080 there is Zero issues. Now if I use Crunchyroll, or Kodi addons that is where I see buffering issues at 1080. 720 never a skip in the stream when using these services.
720 is the perfect HD streaming resolution for all involved. It's a wait and see situation at this point, and pure speculation.