I still like the idea of having the tour ride they had in the Discovery Center in the first movie, before they broke it and went into the lab...but then again, how many guests would try to break it themselves?
The problem that I've heard with JP is they didn't want to have a few different attractions where you're "on a tour and something goes horribly wrong and dinosaurs attack you"...it would be redundant.
I do think a longer walk-through of some dinosaur pens would be cool. The one big thing that was lost when Trike Encounter closed was all of that great theming of the field labs and stuff...it really enhanced the experience. Hopefull we'll get that back.
I agree about the JPRA show building not ever fitting with the theme, I'm surprised they just left it like that, though I don't know what I would do to it, paint it like a forest and add lots of vegetation around it?