You would think they would, but that has not been the case.
Occasionally, a camera maker will offer rebates a few months before a camera is replaced, apparently to deplete their stock.
Any sale price will come from individual stores, not the camera maker.
I would certainly ask for a discount on an outdated camera.
I notice that many manufacturers come out with new models at the PMAs in February. Do prices typically drop on the other "outdated" cameras in a make's lineup when a new model is introduced?