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Wilson said that with four times as much processing power to work with, games would feature, "10 times as much animation detail." He promised "true player motion," along with incredibility realistic stadiums that would include 3D crowds, dynamic sidelines, and true "living worlds."
Wilson showed off a short trailer that featured clips from the various titles, and the graphics did indeed seem to be a big step up, though it's always hard to make a definitive judgment about a game based on a trailer.
Wilson didn't say whether these games would be Xbox One launch titles, but new versions of Madden 25 and FIFA 14 are scheduled to launch in the next few months (August/October) for current-gen consoles, so it wouldn't be surprising if Madden and FIFA arrived within the launch window for the Xbox One (and possibly Sony's PS4). But we'll have to wait and see.
Update: Although Wilson said that the games will arrive within the next 12 months, a tweet from Microsoft's Xbox One official Twitter account says the games will all hit "this year."
Madden NFL, FIFA, NBA LIVE and UFC, all on #XboxOne. All coming this year.— Xbox (@Xbox) May 21, 2013