[quote][b]Posted by:[/b] CoolCJ24 - Killed upon his ship (in Earth orbit) by SPARTAN-117. -Bornstellar-Didact fires the Halo Array; presumably dies from this.[/quote] I have my doubts about these. The Ur-Didact was fully armoured when he fell into slipspace, he was clearly planning on going somewhere after building his army at Earth. Cortana seems to be inside his suit as well, so it's possible that Halsey's theory on AIs transcending rampancy when set up in slipspace could come into play in Halo 5. It also seems that humanity is still up against the Ur-Didact, as ONI are interrogating Chakas about him in the middle of an implied battle and Chakas states that humanity's conflict with the Didact is "combat eternal". As for the Bornstellar-Didact, he says that he shall begin the Great Journey after firing the Rings without the Librarian - presuming that she's about to die on Earth. I think the Great Journey is an exodus outside the galaxy to find the Precursors and get answers about the mysteries behind their creation and past (much like Shaw at the end of Prometheus).