RTS has evolved apparently. It looks fookin brilliant and is mean't to be way more demanding because of the sheer scale of it (how do you spel sheer or shere or w/e). With battles across the sky the sea and land, on insanely large maps against multiple foes, you really have to manage your resources and battles well.
The ability to zoom out to a tactical overview type map then right in to see the units right up close is nice, then the ability to split the screen and watch two areas at once and so on... It's meant to be as good as it looks.
The demo has been released. Getting mine now from gamershell.com.
Everywhere else has crap speeds.