Not going to happen. There are estimated to be over 50 million gamers in America. Of which can put a lot of political pressure on represenatives. As well as the video game industry alone in the U.S.A. employs several hundred thousand of people. That's in game development, manufacturing of consoles, accessories, and upgradable parts, as well as retailers, game reviewers, and reporters.
The video game industry now makes more money then the Music and Movie industry combined. Banning them in the U.S. will have major economical issues, and can actually cause the U.S. economy to decrease, which will cause a chain of events in a negative way becuase of it.
Also, Video games are protected under the 1st amendment and is viewed as a form of art. Which is why restrictions/limitations on the type of content on games are very difficult to enforce because of this protection. Because of this an outright ban is not possible