Halo 4 - Forerunner book image has reference to Halo 4 Concept Art Trailer

Hello there, i found out that this image from the book Halo: Primordium from the Forerunner saga:

Is the same that this one from 343 Industries concept art trailer:

This means many things, first, Halos will appear in Halo 4, at least what looks like a small halo at the right of the both images. Also, maybe this book has to do something with the Halo 4 plot.