I'm hoping it's on the same scale as regular 40K though, anything from 100-10,000 pt games, without harvesting.
I think, what would be particularly sweet, would be making the game so far zoomable, that your looking over the shoulder of your space marines, which of course, I'm hoping are as detailed as guys from first person shooters.
Sure, the polycounts would be ridiculous, but
everybody is going to buy a new computer when Doom III and Halflife 2 come out. And of course, Relic could use a system similair to HW2, where models have multiple levels of detail based on their distance from the camera.