I think the Blood Dawn are the ex-Reaper 15mm fantasy, aren't they? In which case, they're massive, their Dwarves are taller than some humans from other companies. The DW stuff I've got fits nicely in with Chariot (are they still around?) and the long-OOP Ral Partha AD&D 15mm stuff I love so much. Peter Pig 15mm is a bit smaller, but not much.
Awesome news that the Demonworld stuff is finally coming back. I've only got a few packs from them, but a friend was building an entire undead army from DW stuff and was gutted when it dropped off the market.
Must get my DW Dwarven arquebusiers done up at some point, they've been sitting in their boxes for at least four years now!