Well, apparently not.
I did just find a mirrored copy, and saw that there were
some trails added, but it wasn't as strong as in the original shots, so it was easy to miss (I'm guessing they didn't add them to the top half of frame so it didn't make the shot too hard to read around the torpedo itself, but that also means there aren't any light trails where you're actually looking). I was about to update my post just as your replied. So, as promised, some more detailed notes.
The shot of the asteroid exploding still has the camera slightly off to the wrong side of the ship, for those who noticed and brought it up so now we all have to notice.
The CG Earth they're using is a much better match to the paintings from '79 than the 2001 Earth model.
The rainbow tunnel in the forward-perspective warp-speed tunnel still disappears a couple frames after the flash.
The plasma-probe on the bridge has had the alignment between the left and right half of the background improved. It's not perfect, but you can't get blood from a stone. In addition to cropping in a touch and aligning the sides vertically, it looks like they fiddled with the wideness in the probe in one shot, and added more bloom to hide the remaining misalignment around it in others.
Again, color-correction on the new shots is way better than the previews.