Thought I'd freshen the thread up with what little new info is left circulating about Black Ops.
So apparently Treyarch did an interview with "The Official Nintendo Magazine" (which is apparently different and legally distinct from "Nintendo Power"), where they heavily pumped up the Wii version of Black Ops. They very nearly confirmed that it will, like Call of Duty 4 before it, be identical in terms of content to it's PS3 / 360 / PC brethren.
They also dropped the world's most majorest hints that they're happily ditching the IW3 engine that powered the Wii versions of World at War and Modern Warfare (it was also very likely responsible for the framerate issues in the later), and have decided to build it from the ground up on an engine more suited to the Wii's limited hardware environment.
They bragged that the visuals will "blow you away", and that "you wont believe this is running on the Wii".
However, this brings up two very important question. Just which engine is being used, and how come, if the Wii version is in fact being taken seriously this time, Activision's own highly publicized GoldenEye is being released the very same week as Black Ops?
Let's talk about the engine, first. There seem to be three possible options. The first is that the game will be running on the same engine quietly powering the new GoldenEye title. From a business standpoint, it wouldn't be hard for Activision to get their hands on it and lend it to Treyarch, as they are obviously publishing the only known game it was used in. It's also very gorgeous; it can handle high poly-count models, renders textures well, and has purportedly fantastic performance, even in 4 player split screen mode. The second, less likely option is that they are using a licensed and modified version of High Voltage's Quantum3 engine, which powered The Conduit and the upcoming Conduit 2. It sports high poly-count models, fantastic lighting effects, and great water and particle effects, and great performance. However, the few leaked screens of Conduit 2's local multiplayer show it has pretty severe issues rendering 4 different screens at once. High Voltage even said that the engine was not used to it's full potential in The Conduit, and that they were also looking to license it out to anyone who was interested, so it's certainly an option. The third, and least likely option is that Treyarch is building a new engine from the ground up. This is unlikely do to the fact that Treyarch typically uses preexisting engines to power it's Call of Duty games .Call of Duty 3 on the Wii used the same engine and assets as the PS2 version, and World at War, Black Ops, and Modern Warfare Reflex all used modified IW3 engines, the same that first appeared in Infinity Ward's Call of Duty 4.
Now, about the conflicting release dates. If the Wii version of Black Ops releases as scheduled, it will directly compete with and cannibalize the sales of GoldenEye, and vice versa. My prediction is that the Wii version will get pushed back, either closer to Christmas or to Summer 2011. After all, if it's such a big production, there would be more prerelease screenshots, videos, trailers, and interviews than there is. They're also most likely not finished if their decision to switch engines was not managed well and ate up a lot of time.