there is no Halo 4, Bungie even said so, and some people speculate that the blue planet is Marathon since Marathon takes place around 200 years after halo and the main character`s name is John like the Master Chief and that Bungie will possibly remake Marathon.

dude thanks though i didnt roll through the credits i was going to go through re-do it but hey i got the ending i beat it on ledgendary but its sweet ... amazing ... there shall be another ... workout with master cheif teabag your way to fitness

ikharisma and nadein you guys are the most stupid people i have ever met! its your fault you clicked on it so dont blame him for your stupidity.

Oh and for those who said ty for ruining the ending for me are stupid why would bungie release halo 4 footage only 1 week after halo 3 dumbasses. anyway if u havent even bought the game halo 3 why would u watch a video for halo 4 u guys just ruined the halo series for yourself. Next time dont click on the link unless uve actually beaten the game.

You have to watch the credits inorder to get this ending. And the part where u see the ship heading to a planet is the extra part added after u beat ledgendary.