I think it would be great if it did make a comeback but I'm sure there would be some licensing issues preventing Stern from using the Pinball2000 concept .
I am surprised that the idea never really took off when it was originally released . It should have been the thing that kicked Williams along and possibly seen them still around today but alas wasn't to be . As you said Brett is was "the next step" in pinball . Over the years pins have evolved from bagatelle type games , through the flipperless and flippered EM era , then the SS era , followed by the DMD era . Pinball2000 was the evolution of pinball to the next level .
I think it would be a good thing for pinball in general to see these type of games brought back . At the end of the day there are only so many themes Stern can come out with before they get a bit same-old . It would open up a whole new dimension in gameplay options and themes .