Initial videos were like this I think. It's all about building and keeping interest. Don't forget things like Blackstone and the rogue trader kill team had cartoons and then all of a sudden miniatures appeared at the next big show. (Being positive deliberately)Someone correct me if I'm wrong, but the reveal trailers for older gangs had minis at the end and they were still released about 3 months later right? It's not Forgeworld so hopefully it's quicker than, say, the delaque extras. But without even getting a glimpse at 3d renders the pessimist in me wonders how long it will be.
That said, this is the type of news I'm excited about and I'm looking forward to seeing them!