I don't think pro stuff will get attention, aside from perhaps a quad Xserve (though it'll probably run at 2 or 2.3 GHz to save power). I certainly doubt that Apple will do anything new to the PowerMacs and PowerBooks in January, as it would be hard to justify replacing the 12" when there's no room to trade up without cannibalizing sales.
MWSF will almost certainly focus on consumer-level hardware: maybe a new iPod shuffle (or replacement for it), iLife 06, iWork 06, and maybe an Intel-based Mac mini.