Could they? I don't know and they aren't saying.

They haven't yet... and i suspect they don't plan too since the taskpad offers a similar view. You can get kinda, sorta close with the taskpad on the botton of the day and week view. Yeah, its not the same as selecting a date in the month view, but its about as good as it gets in 2007/2010. In some ways it is better, but it takes some getting used to.
The Calebdar & task pad with the tasks due each day: