******WARNING MAJOR SPOILERS from the book ghost of onyx and halo 4 possibly *******
The story will leave off of Ghost of onyx’s ending Kurt and some spartan’s and DR halsy were teleported to the shield world. The thing the master cheif is going to is the shield world. Currently Kurt and the remaining spartan’s are at war with the sentinals because they believe these humans are threats. They were fighting on the ghost of onyx with each other and the ghost of onyx was actually a big for runner structure. Since the Spartans were on the ghost of onyx they have found a some technology that had controls to open a teleporter that was only open for so long. Spartans had a big last stand and escaped and 1 spartan stayed behind and manually blew up the nuke to destroy the big covy armada that was attacking them I think this was kurt i cannot remember so kurt aint in the shield world with the fellow spartans and dr halsy. So the chief is flying into this structure that may be the shield world. There is a lot of sentinal activity on the planet as well. The spirit of fire could also make its re appearance in this exiting new trilogy. At the panel the producers and such were saying you will be surprised .But i would of asked them the question about this is the story coming off from ghost of onyx and will you be able to reunite with your fellow spartan’s. And the sentinals may not ally with the humans anymore since you destroyed one of the rings and damaged the arc. I also have guessing for halo 5 and halo 6 but one guess at a time ehh i am 80% positive that the story will be like this.