As was seen during the new year sales, people were buying for the sake of satisfying our frustration from tightening our purse strings. This could mean an increase in the sale of consumer luxuries that hopefully will drive down the price of lenses and DSLR's based on demand and supply.
Also with the expected rise of the four-thirds cameras during this year, the DSLR may need to seek to capture the potential floating consumer who may sit between advancing from a compact/bridge camera into the more camera enthusiast world. To catch this market it may require differentiation from the market leaders, or simply offering a more affordable range which may consequently reduce the value of all DSLR's in general.
I reckon that we may see a reduction in the price of the DSLR body, but with regards to lenses, quality will always play a bigger part then price. If companies continue to offer attractive body + budget lens price initially, if this captures the imagination of the consumer (like it did me), they will soon look to spend their buck on a more expensive lens. Like the Microsoft Xbox - sell the console at cost price, make the money on the games.