The best way I can see they could advertise how the new game works is to have the designers/playtesters do an Actual Play video for us to watch.
The way the game seems to work with visual aids and the special 'descriptive' dice, I can't see a better way, rather than just listening to someone talk in general terms.
D&D 4E had penny arcade - I'm sure Warhammer can do better.
Perhaps the RPGMP3.com crew could do it?
Anyone else agree?
Then make them.
If they build it I will come.
(Just a thought while I was thinking of 4E. Is it just me or did both Warhammer and D&D have a similar design brief but end up going in completely different directions. Both went the way of making it pretty and play aids, but D&D 4E went total ROLLPLAY and Warhammer 3E went total ROLEPLAY, if you don't count the rolling bit.)