Comment Of course it'll happen (Score 2) 185
Apple is pretty predictable -- once they've started showing their hand. They consistently take successful ideas used in one place and expand them as far as possible. Successful user interface paradigms developed for one application later appear in others. The iOS App Store begat the Mac App Store. So it seems pretty obvious that Apple, having introduced Siri, will expand it.
Except for major OS releases to paid developer program members, Apple almost never releases anything with a "beta" label. Siri is labeled a beta, which surely is meant to indicate that more functionality is planned.