Are you sick of the same ol' World War II shooter? Have enough of the clichéd role-playing hero? Want more innovation and gaming as art like Katamari Damacy and Shadow of the Colossus? Now is your time. Join the Experimental Gameplay Workshop, which is hosted at the Game Developer's Conference in San Francisco. You can check out what they accept and reject on their website.
Interestingly, they don't deal with "edgy" material (probably something completely stupid to think of, like playing as a rapist or something else unspeakably "edgy") which is probably for the best. What they do look for are more open-ended gameplay mechanics -- linearity is a thing of the past, ostensibly. It all seems so interesting! I'd love to try my hand at offering some ideas, but I live way too far from San Francisco to think about it. So go ahead, submit yo'self, or leave a couple of your fleeting ideas here and we'll talk about them.