The Timeless One will probably be involved

Why else would 343 be building up this character, come on. He’s probably gonna be in Halo 4, or something will happen to him in the Forerunner book. Whatd u think?

Yes,Highly likely

> Why else would 343 be building up this character, come on. He’s probably gonna be in Halo 4, or something will happen to him in the Forerunner book. Whatd u think?

timeless one - the gravemind

Yes, likely.

A quick search turned up this, you can go through it, it may or may not be useful.

Well he was in the concept art for halo 4.

Sketched art: ImageShack - Business Plans
Concept Art trailer: http://i55.tinypic.com/35in9te.jpg