I'm a big fan of Iron Kingdoms, so much so that even though I'm not a Warmachine/Hordes-player, I own several of the rule books because of the stories and artwork.
I suppose the upcoming version of the RPG, which I look very much forward to, supports the use of miniatures. Would be silly if it didn't. But will they practically be required, as with D&D 4th edition requires minis? I really hope not, but I would love some information on this.
Also, the preview video looks great. Taking old art and adding color is a very nice touch! Christmas comes in summer this year. :P