I just recently had this idea. What if, during Treyarch's off-season, after they release Black Ops 3 or whatever it will be, they were to make a Remastered Version of all of the Zombie Maps? Just a standalone Zombies game. Filled with everything. The easter eggs. All of the same guns. Everything.
The reason why I thought that this would be a good idea was because to be able to see the WaW Zombies maps remastered with the Next-gen graphics. How amazing would all of that look? To be honest, I don't really care when it would be released. I would just want it to happen. I rather wait longer for an amazing game, rather them rush it and it be terrible.
Just a thought. Tell me what you think.