I would like to have the ability to Filter photos in LR CC by photos that have people in them. For example, if I turn on a people filter, only photos where LR CC identified people with the face recognition would be shown.
You can already do this by creating a custom filter on Keywords>Contains Words>People. Ensure that the People keyword list contains the People keyword then have all people names automatically added to the People keyword. (In Windows it's a right-click option; an asterisk will appear next to the People keyword when it has been set up appropriately).
However, I agree that Lightroom should have the capability built right into the filter list.