CSI: BSN (May contain researched or accidental spoilers)

In the 4k Tech video, a voice that sounds like the asari says: "Wauw, I was really just scratching the surface." when a bridge forms as the protagonist moves across a chasm. This seems to suggest that she's been looking at this place.

Here's holding to my theory that she's a tomb robber or such and not a repeat of Liara's archaeologist.

Interestingly, it sounds like the robot-like creatures we see are referred to as remnant: "Another remnant right in our way." and "More remnant."

It should be noted that in the case of the latter, there seemed to be multiple robots floating by which suggest that it is remnant, not remnants. This may be me mishearing it, however.

While approaching the control panel where the cutscene occurs, it sounds like this is said by a male voice that does not belong to the player character; "All conduits converge here, Pathfinder". This may be the player character's rank or occupation. It is also possible that it is given to the player character by someone possibly someone of the Andromeda Galaxy. If we go by the theory that the omni-tool now speaks then it is likely the former.  

Pathfinder is a term and nickname that exist in the real world and may have been used as inspiration. Information can be found here: en.wikipedia.org/wiki/Pathfinder