Yup, Boddah's right. Besides which, parks make decisions based on Return on Investment (ROI), not patterns. Still, basing predictions off patterns is of no use either. It still won't tell you anything. They can make you think you know what is coming next, say a new flat, and then totally throw a monkey wrench into the mix with a BB expansion. Maybe this thread should be more of a wish list than predictions.
BTW, here's my prediction for 2005. PKI will in fact install a new ride or attraction of some sort that will make them lots of money with a nice ROI. That's about all there is to know.