I'd really like to see a secondary, or another special, like maybe a gas launcher. You cant put a perk into dlc, then people who dont have the dlc will really be up in arms about not having that perk and being forced to buy the dlc for the perk to keep pace with everyone who does. As it stands, weapon dlc can be used by any one , pick it up from a dead body and try it out. Whatever the next dlc weapon will be(if they do that) really needs to be something with a slightly more "wow" factor than another gun. But if you think about it, it would have to be something another player without dlc can pick up and use. That means no new grenades, equpiment,perks, or scorestreaks. aside from a map, they are really limited in what they can add to keep the gameplay as fair as it can be.
Forget that. I want a wonder weapon from Zombies to be added to MP.