Call of Duty: Black Ops 2 comes packed with a fair bit of content, between the campaign, multiplayer, and expanded zombie modes. But Treyarch is planning to add more modes eventually, based on some internal playtests.

Asked on Reddit (via CVG) if more game modes would be coming to the game, design director David Vonderhaar replied: "Absolutely. Although we haven't released any details, or even decided which ones, nor could I give you a count or time, we have several games modes we play in development."

It all sounds a bit hazy right now, which means that new modes could be a long way off. They certainly won't be included in the Season Pass, since its content is already mapped up and defined. But for those who plan to stick with Black Ops 2 for the long haul, you can at least be assured that something is coming eventually.

For some more thoughts on how the single-player campaign worked out, check our review.