my console clicks as well when the heat makes it expand, and its more of a settling noise than a repeating click. This only occurs with the slim and not my original 60 gig fat model.
A new model will have smaller components and the overall depth may decrease, (as this dimension currently is actually marginally larger than the original fat). They may shuffle the hard drives around again as well.
But a wish list would be changing the aesthetic slightly to have a black aluminium case with the PS3 text that illuminates from within from new led lights. The aluminium would also serve as one big heat sinc and help with the consoles cooling, much like some laptops. They re-introduce 4 usb's and BC to the console. They package it with the PS-Move Bundle and call it the PS3 ultimate, for $300.
This would be 1 of the 2 new skus introduced.
The other would be just the new case, (no extra usbs, no bc, smaller hard drive, no ps move bundle included) for $200
Both consoles keep the same dimensions as the current slim (with possible depth reduction) and they would FLY off the shelves this holiday season.








