Theres quite a few bits and bobs added form 2008 (in Ex 1, muscle, and Extension2, mental ray, modeling and Uving tools)

As I said Jos Stam's doing a unified dynamics solver demo at a conference (the euro leg of siggraph, prior to the main show) here's fingers crossed its neucleus solver accross everything.

So I think 2009 will have pretty obviously all of extension 1&2 as well as some neucleus dynamics/fluids in there, which wouldbe a nice package.