We know that rumble controllers are going to be in this redesign. Sony and Immersion buried the hatchet, which prevented the PS3 from shaking in the first place, and Sony is currenly "working closely with them" to explore "new and innovative ways to utilize this technology in PlayStation products."
There's been some significant changes in the storage capacity of various PS3 models and how the company has dealt with them. Today the 80GB model was announced for Korea, a global release shouldn't be unexpected. The lack of a European 20GB model was the harbinger of its North American death and we're still waiting for the official Japanese death, but like we said before, we expect that to happen when the 80GB model is officially announced for the region. Plus, each model released during this incremental launch has been slightly different than the last. We can watch the evolution (and the survival of the fittest) in progress.