User:Andrew Nagy/Unanswered questions in Halo

The main canon

 * Was the detonation of the second Installation 04 powerful enough to destroy the Ark permanently, or will it eventually repair itself and rebuild the installation, possibly with Flood still on it? Is anyone planning an expedition to find out?
 * Did the entire remaining Covenant military accompany Truth to Installation 05 to eventually be destroyed at the Ark, or did some stay behind and survive? Do planetary outposts remain that could develop into a threat?
 * Will the Kig-yar make a bid for power now that the Covenant are at least weakened?
 * Will the Covenant Separatists remain an organized force, considering that opposing the Prophets seem to have been their only common goal?
 * If so, what will they do next, besides ferrying the Elites who want to return to Sanghelios? Will they be effective as a permanent peacekeeping, Flood-exterminating and possibly Halo-demolishing force? Will they be able to control Journey believers within their ranks?
 * If not, who will end up in control of their fleet? Will they be reasonably good guys, or at least favorably disposed to the UNSC and Sanghelios?
 * Does the post-credits scene of Halo 3 take place at the Ark or somewhere else? What kind of beacon does Cortana drop, and is it powerful enough to reach human space directly? Will the Chief wake, and if so, when and where?

Curiosities

 * What does a Halo pulse actually do? What else can be done with the technology involved?
 * Where are the recovered shards of the Reach time crystal? How did the crystal work, and what else can be done with that technology?
 * What's with the backwards message in Halo 2?
 * At the end of Halo 2, why did the Forerunner dreadnought jump to a point so far from the Ark portal? And on that subject, how fast is "near relativistic speed"?
 * How fast is Ark portal travel?
 * What was Cortana's secret that Gravemind talked about?
 * Why didn't Gravemind expect to die after the second Installation 04's firing? Is his mind spread wider than just the vicinity of High Charity?
 * What happened to the Precursors?
 * How did the Flood originally come to exist?
 * Does the Flood's extragalactic origin mean they're still be at large out there? If not, what happened to them? If so, why haven't they tried invading our galaxy again?