i dont think they will release anything until the new dlc has been out for a bit, wouldn't make any money sense, whats holding it back apparently is the decision to release Radiant with the tools, and whats holding that back is more bucks via map packs, once they release Radiant for Black Ops why buy maps when you can make them, another problem apparently with Mod Maps, they are unranked and keeping them occupied with players may be difficult.