This is why I believe Sanghelios will be a major part of Halo 5:
Locke teaming with the Arbiter to find Master Chief. Why would Locke go to the Arbiter for help? Unless he needed his permission to search for Chief.- Concept art seems to be similar to the look and feel Sanghelios to be.- Why Chief might go to Sanghelios? In search of Halsey/Jul Mdama, the key to all forerunner technology- Last, why would the Arbiter agree to help hunt down chief, his friend, unless he was feeling some outside political pressure? Would explain why the Arbiter and Locke do not seem to be to friendly towards each other, only reason for him sticking around to help is if he is playing some sort of escort role.What do you think?
I think many of us think that too (I mean Sangheilios will be a part of Halo 5).
If Chief on the Sanghelios then Arbiter the only one who can assist Locke to find John. But I have no clue why is Chief would be on Sanghelios.
Arbiter said in the MCC trailer that what he say, he doesn’t say because he trust in Locke, but because their life are at stake, so probably their life depends on Chief (acts).
Anyway I think the “hunt” word is a bit strange, because Locke’s mission is to bring back Chief and not to hunt/kill him.
If Chief was on Sanghelios (a world inhabited by eight billion members of a Tier-2 race) or anywhere near Sanghelios, no one would be needing to send a team of highly elite Spartans to find him.