Move aside, pops.
No worries mate!
You can see the unnamed Howling Banshee hero here at 0m 20s:
Here is confirmation from one of the community managers on the Ven. Dread:
the "ranger" hero can be seen here near the shadowspectres on the left. He has a white/grey ponytail and a long rifle: http://imgur.com/a/v8DXG
Edit: Dire Avenger --> Howling Banshee.
Cheers! Grabbed a bunch of source links for the other stuff we mentioned to, and put it all in appropriate places.
Hey! Thanks muchly for this, added a few in. Somehow forgot Eldar Jetbikes actually had a name, or that Dire Avengers even existed. Been a decade or so since I did Space Marines vs. Eldar on a friend's carpet...
Have you got a link for the Dreadnought Elite interview and the screenshots of the other Eldar heroes?