eb said:depends what you call significant? MotoGP 06, Hitman, Xmen, Fifa WC are all top titles that will sell well...not that I bought any of them!
However if I look through the 'coming soon' list there's only really a handful that grab my eye...and there's a worrying trend of games being (continuously) delayed (Read GoW & Dead Rising for example).
I'd say none of the titles you listed are significant. They will sell in small numbers but they are certainly not comperable to an Oblivion or GRAW.
Gears of war delayed? When is it coming out now?
Dead rising never interested me as a buy - a rent maybe.