I had this conversation last night while playing some pinball with other pinheads, and a few came to the conclusion that Star Trek Sales have not been all that good, and this means that Stern will not push the resources to progress the code as is could/should be pushed to perfection. Since the $ numbers aren't there, a couple of the guys said they'll do a few "touch-ups" and they will move on to the next title. This also takes into account that Lyman, who appears to take more personal pride in code, is not on this project.
I'm not trying to stir the pot here, just opening this up for intelligent discussion on what people think about this. I really hadn't thought of Star Trek like that, quite frankly.
Personally, I thought of AC/DC which I didn't care for in early code stages, but the later code made me want the game and I do believe the sales were a reward for the investment that Stern (or Lyman, depending on how you look at it) put into perfecting the game, and Star Trek has the same potential (minus Lyman).