Halo 3 legendary Ending: After the collapse of the slipspace portal, Cheif and Cortana are left floating in the middle of space. After a bit of dialouge, Chief hops into Cryo. Next we see the Forward unto Dawn floating toward an unknown planet. This planet has a Forerunner look to it. This planet is collectivly known as the "Legendary Planet". Halo 4 Teaser: Cortana wakes Cheif out of Cryosleep. Cheif runs through whats left of the Forward Unto Dawn. Cheif uses EVA thrusters and a hand-held 'nade launcher, the shot pulls out. We see a massive construct in the distance. Then the trailer ends. Conclusion: I was wondering what the construct ccould be. It hit after re-reading Ghosts of Onyx and I can't belive I didn't see it before. The "Construct" that is seen is a Forerunner Shield World. It is easiest to tell when you look at the wallpapers 343i has released for Halo 4. You can easily see the petal-like objects that would surround the entrance to the Micro-Dyson Sphere. I also believe this planet is the Legendary Planet. The planet, being a shield world, would eventually have to open after the firing of the Halo Array. The arrival of a "Reclaimer" may have triggered the creating of a doorway out of the planet. The Forerunners may have added this as a feature to the world to prevent them from exiting until Humanity had advanced enough to reach the Shield World. This would explain the sudden changes in the planets outward appearance. EDIT: The planet I am referencing is NOT Onyx, it is stated numerous times that Onyx was destroyed. This planet is a different Sheild World. Links: [url=http://halo.xbox.com/Content/assets/en-us/blog/News/HaloCEAHalo4Wallpapers/Halo4_1600x1200.jpg]Photo of Halo 4 planet.[/url] [url=http://halo.wikia.com/wiki/Unidentified_planet_(Halo_3)]Legendary Planet(Halo 3)[/url] [url=http://www.youtube.com/watch?v=Yygn_vlH5a4]Halo 3 Legendary Ending[/url] [url=http://www.youtube.com/watch?v=TC2yMKMENdg]Halo 4 Teaser[/url] If you see flaws, canonically or gramatically, please tell me. [Edited on 06.29.2011 11:19 AM PDT]