It’s on the hit list. Nothing to announce at the moment. 
What kind of device are you viewing your dashboards on? If you’re using Fully Kiosk Browser, there are integrations for both SmartThings and Hubitat. You could then use the Fully Kiosk Browser ‘thing’ in your rules to navigate to different dashboards.
So you could create a dashboard that shows your camera ‘fullscreen’ by making it take up most of the dashboard space… then have a rule that switches you back and forth from that dashboard based on whatever events you desire.
Here’s a thread showing the concept of using a dashboard to display media ‘fullscreen’. In this particular example, they also wanted some controls near the video feed for controlling their flood lights. Same concept could apply to a door lock or other devices that you might want to control while viewing the feed:
More Details:
Request: Tapping Media Tile as a Trigger - #2 by josh