I definitely like the weekly featured game idea. Of course, being a game dev, I'll look for any ways I can to shameless plug a game. :P
But in all honesty, if you give people a means of promoting their games, a lot of people will come in just to promote their games. Whether that's something you want is up to you. I think it's cool, but it can create a lot of noise if you want other kinds of content. That's more of a problem for subreddits than forums, but it's worth considering.
tl;dr idk what I'm talking about