For the love of, I can guarantee IGN didn't "shop" these photos. Until they get either the full game or a playable preview build to keep in the office, all of their photos come from the companies PR division who's job is to provide screenshots, info, and press releases about the game.
And even if they have a build in their possession unsupervised and want to release screen caps they have to get permission for each individual photo from the PR guys. So these photos are definitely without a doubt from Capcom's PR people who sent out photos that could be used on both 360 and PS3 sites without "alienating" the fanbase by including the wrong buttons. It's not a conspiracy, there isn't anything fishy about it. It's just capcom's PR sending out promotional screenshots that they themselves edited for the convenience of media outlets.
You can find me on facebook as Markus Van Rijn, if you friend me just mention you're from VGchartz and who you are here.