So, we gained new concept art of a place we’ve never seen in a game before, and here it is:
So I’ve seen a little speculation so far, and I’m going to tell you where it is and why.
It is Sanghelios, homeworld of the Elites.
There are a few things that give it away. For starters we all already know Sangheilios is a harsh planet with large deserts. So the terrain certainly matches. That’s not enough on it’s own, so let’s move on to the structures.
The buildings are generally rounded, they look somewhat ancient aesthetically but also futuristic technologically. The rounded design bears some similarity to the Covneant aesthetic of round walls and domed structures. This leads me to again believe that the structures are Covenant, most likely Sangheili in nature, especially with the red war banners.
Next, the statue. The statue upon close inspection appears to have a mandible guard similar to Elites, and the Helmet bears some resemblance to the Abiter’s helmet. The “right arm” (left from our perspective) appears to have Reach-like Armour, and the object he’s holding, or what of it we can make out, bears some similarity to the barrel of a Needle Rifle or Carbine. Also pointed out that the object the statue is holding resembles an Energy Sword, which I do see and agree with.
Finally, the dead givaway, in what little of the sky we have to see, there are two suns, both of which are red. Sanghelios is a planet in a Tri-Solar System, that means that there are 3 suns in Sanghelios’ sky. Sanghelios’ suns are also already known to be red-coloured. Which is actually where the name Sanghelios comes from, directly meaning “Blood Suns” in another language (I believe Latin? Could need confirmation).
So, that there are my 4 bits of information that help prove that some part of Halo 5: Guardians will take place on the homeworld of the Elites. Whether you visit this world as Master Chief, or as the new Oni Agent are beyond me.