Will the 3rd Kilo 5 book show the UNSC knew

Do you think that in the 3rd Kilo 5 book could possibly show that the UNSC could’ve known of The Didact before Halo 4, and Requiem by finding the coordinates to Requiem?

Bornstellar-Didact relation from Onyx.

It will probably deal more with Venezia than anything. I actually look forward to that.

Edit: Also what erickyboo said. Showing ONI find the Bornstellar-Relation and explaining what exactly it is, (terminal, monitor, person), would be fantastic.

My impression has been that the ONI interrogation of the fragment was post Halo 4.