And MS wouldn't be announcing new hardware with integrated BR drives if they weren't already in the production pipelines as the announcement of a new model could potentially cannibalize current sales of consoles.
Unless they're going with a 4 tier product line up, MS would be left with a glut of inventory.
Like everyone's been saying; wait until Monday.
How this would have anything to do with upstaging any announcements from Apple is a mystery to me.