green and blue - future campaign?

the last track of the halo 4 OST, i think its big, maybe a hint at the future of the chief’s story?

the obvious options are that green is our tall spartan friend but what is blue?
blue team? an event that centers around cortana?
could it be that the guys in this picture are the new blue team? maybe the chief is reassigned with a new squad? or could it be, just maybe, you know, even with only a minimal chance that the guys in this picture all along were spartans 104, 58 or 87?..
not talking about the marine guy in the old HAZOP helmet of course. this is wishful thinking at best i know but my god if those besterds were at plain sight all along…

http://www.gameranx.com/img/12-Jul/halo-4-master-chief.jpg

any more takes on this?

I’d imagine blue is a reference to Cortana.

^this guy

> I’d imagine blue is a reference to Cortana.

samesy

Cortana and chief’s connection will play an important role in Halo 4. It’s the most obvious prediction.

or those blue forunners weve seen.

Or it could be that after Release this “ancient evil” That the elitesmade the mistake of releasing whatever it is and Elites and the Chief Ally again with each other to stop it.

Or maybe it represents our glorious planet earth. o: