Yes, thanks, that's where I read about Balcer not wanting to reveal too much of the design:
"I worked for Gary Stern for more than twelve years and I respect all those guys over there, but I don’t like to give them what I’m doing. Especially in today’s world with the Internet and how fast information moves. We put my layout out there and it was in the competition’s hand in a minute...So, to give a general idea of what’s going on, I’m OK with that. But to dig in to it and actually put out a lot more details, that’s something that I’m definitely not comfortable with." (From Pinball Magazine Interview)
Quoted from JoeJet:What did WOz reveals give the competition that has been incorporated into Metallica or Star Trek?
Looks like Stern doesn't care.
I'm not sure, the only thing I can think of is the return to the shooter lane behind the upper-right flipper on WOZ being similar to the one on Star Trek.