I was doing some COH investigating right after the servers went down, this was one of the things I came by too. Very cool stuff.
Another thing I found that was personally a bit more interesting was footage from the alpha version of the game. It's interesting to see how much it evolved.
https://www.youtube.com/watch?v=O3kW2Le9TJk
Wow, I never saw that one. Very interesting to see CoH had power stats like STR, INT, Willpower, Agility, Stamina, and Durability?, as well as speed, and some others. It's hard to make out with the low-res. The color scheme, layout, and lettering kinda remind me of the Champions UI.