Christmas is almost past, PMA is only 2 months away - some speculation in Chasseurs d'Images (french magazine) this month about what could be announced early next year:
Nikon are in a price war between the D70 and Canon DRebel. The D70 costs more than the DRebel to produce so there may be a simplified D70 on the market soon (D50?)
Canon could update the DRebel with components from the 300X. They may also switch over to the 8Mpix sensor used in the 20D - makes no sense to have two sensor lines running.
Logically Konica-Minolta should release a simplified 7D called the 5D.
Remember, this is all speculation.
Charles