Toyota has posted the 6 option packages for the 2005 model year Prius on its website. Some improved photos are posted there as well. These are the same components we had in 2004, rear wiper now standard, harder to get without side curtain airbags.
There are no changes, cosmetic or otherwise, for 05 beyond the 5 replacing the 4 in the VIN and on the Monroney sticker (in the US). It just wouldn't do to slow the assembly line now.