From Dave Candland.

It's a shame there aren't dates attached to each iteration so that we could see how long it takes to move from a graybox state to a polished art state. Have to say I kinda liked the Diegetic UI Concept 3:35 in, though I can also see the issues with it. Being front and center like that seems rather distracting.

Also @ 5:17, looks like a Warlock dropping a rift... in Destiny 1. Development!

Nice find. :)