no I also think so, and for the next dragon ball too. there are many potential million seller that we forget: valkyria chronicles, haze, wipeout HD, LPB too, ...
Oh hell no. It's dumb to think Valkyria will get past 500k. It's in genre that doesn't sell big numbers at all. I'd be doing backflips if it did those numbers! I expect more along the lines of a 350-450k WW lifetime sales.
Wipeout HD is an online only download I think.