So there's a bunch of preview videos posted on Youtube by IGN, RPS and some others, and one sound very stands out.
Energy decay sound. Very grating, repeats itself 9 times, plays during cutscenes when you're holding "X" to focus on something happening. I hope it's not too late in the development cycle to fix it. I can tell it's going to get super annoying very fast to a lot of people. Brt-brt-brt-brt-brt-brt-brt-brt.
Honorable mentions, out of stamina sound, less annoying and much shorter but still mildly annoying, and no song playing in medbay.