Yes this is just Microsoft re-selling Halo again and while I don't see the need to own it outside of the bonus material included, I do actually like the fact that you can own and play the series on one console. There is something cool about that. I'm more interested in what's teased in this trailer. I can't wait for more details on that mysterious figure and voice! https://www.youtube.com/watch?v=aPGPiSpTw4w

For the first time ever, The Master Chief's entire story is on one console. Featuring a re-mastered Halo 2: Anniversary, along with Halo: Combat Evolved Anniversary, Halo 3, and Halo 4, new digital series, Halo: Nightfall, and access to the Halo 5: Guardians Beta, this is the definitive Halo experience. To launch the Halo: The Master Chief Collection at E3, Xbox and developer 343 Industries recreated one of the most iconic moments in the newly re-mastered Halo 2, with a twist by revealing that what the audience is seeing is a holographic projection that is being watched by a new and pivotal character in the Halo universe: Agent Locke.  The more Locke studies Master Chief, the more the audience gets glimpses of Locke, and the dynamic between the characters is gradually revealed, a dynamic that will play out in the soon to be released Halo 5: Guardians.