I'm skeptical, for a couple reasons. For one, I think we are still at least another ten years away from the generational turnover inside Hollywood that would be sufficient for video games to be taken properly serious as a source material. There are still too many people at the top for whom video games are that strange new fangled thing the kids are playing, rather than something they personally grew up with as a ubiquitous part of the pop culture landscape.
For another, part of the big appeal of superheroes, to the *studios*, is that they are part of giant multi-character multi-story conglomerations, where producing one adaptation can promote and lead into others. Which is to say, its not the superhero per se that was appealing, but that fact that they came in pre-packaged universes where ( in theory ) if you had Marvel or DC you could build a multimedia meta-franchise. Video games don't really have this going for them, both because they aren't as unified as superheroes ( 95% of all the superheroes people care about are owned by two companies, and that is probably being generous ), and because even the video game characters and stories owned by the same publisher aren't usually part of the same world in any useful manner.
For a third, while the comic book industry was and is a tiny thing, where big media companies like WB or Disney either could easily come in and buy up the business, or already had decades ago, video games by contrast? Tend to already be owned by rich media corporations. Unless your name is "Sony", this means that trying to make movies out of video games means you probably *have* to deal with other corporations, its not practical to bring the IP in house. Even if Disney wanted to buy Nintendo, Nintendo isn't selling; and the idea of some Hollywood studio bullying *Microsoft* into selling them Halo is laughable on the face. ( And in the case of Sony, the big obstacle is "You are Sony". *ahem* )
All told, video games are not anywhere near the same fertile field as comic books, not for Hollywood at least.