I just added a link to my link list: Costume GET!. It’s a rather cool blog by Wataru Maruyama, a videogame media guy from IGN who likes… costumes. And no cosplay in sight! He doesn’t seem obsessed about it either, just noting down his observations regarding costumes in videogames he plays.
I think this is a trend that we will see more examples of in the future: people focusing on a given facet of the complex tapestry that is a modern videogame. I believe the dozens of specialists working in the game industry might appreciate the limelight, too, considering how often the producer or director gets all the attention.
I could see sites about videogame cars, mecha, guys, chicks, weapons, levels, bosses and whatnot.