Based on what I have read in this thread, this is a puzzle that we will be unable to solve, should there actually be a puzzle in here in the first place.
There are no patterns that can be identified from this site that lead to any possibility of drawing out the location of the other sites without dumb luck of someone explorer happening to trip across it. The only clue that was provided for this site was an image from the trailer, which would not really be ideal for creating a puzzle to be solved within the game.
I've been pondering why this planet in this system was chosen for the site, however there does not appear to be anything that would indicate this system is indeed special that would single it out for selection to place the site on.
The artifacts and monolith combinations have been brute forced by thousands of players now, no clear pattern emerging from any attempt that would provide a clue to the other sites.
The analysis performed on the sounds from the monoliths, up to 4 hours of audio, show no repeating patterns within the audio. Unless this is an enigma style code there is no way useful information can be obtained from it.
The only information that we have that states there are more sites comes from the mission to access the data itself, with each fragment of information gathered from the monoliths numbered.
Now we have a CG which we completed really fast however has not yet provided any further clues.
From a design standpoint this puzzle appears to be one that can only be solved by the creators providing more information as they see fit. Rather g frustrating when I see how much effort that everyone who contributes to this thread and the previous ones go to.