According to the video:
"Tesla's next big update will reportedly add some awesome new autopilot features and introduce a redesigned user interface for the dashboard display."
The timing for the release of the update outside of current beta is unknown, but we figure it'll go OTA to only a few cars at first, before getting a widespread release.
The video covers most of the expected changes/updates.
Update : a recent detailed leak on 8.0 hit Reddit yesterday (via mat101010)
Some translations from the comments are below. Take all of this with a grain of salt.
The top menu auto-hides like we've seen in the Windows 10 UI.
There does not appear to be any App or OS mirroring.
More grayscale, less colors in icons and buttons.
Charging stations can now be toggled on and off like Traffic and Satellite Imagery.
Lots of off-topic chitchat about Tesla's navigation system being awesome/complete shit
Spotify is super (and not sure if this means anything for US owners)