As it seems that, at the time of writing, the links to the videos (posted originally on AO forums) are in "error 404' (except the little YouTube one, of course), Athen Paladins made a page with a high-resolution photos gallery from the video.
http://www.athenpaladins.org/aonewengine/index.html
We had many requests from active members but also from old members, away from AO but in touch with us, who wanted to see something of the upcoming new engine.
Many old members state that, with a new engine, they would he happy to come back to AO. As usual, we'll do our best to welcome them back... as I'm sure all the Community will do!
I hope this temporary page will help.
(It can anyhow help anyone who wants pictures.)