Yes, but not a lot. Carriers are almost never used (don't use them unless just vs AI), I don't know much about voidrays, but phoenixes are used for their ability to drag ground units into the air so they can be killed and for killing overlords for harass against zerg until zerg can do damage to them more effectively.
Airtoss is a lot more effective (and in some cases, more effective than ground) in HotS.
Also, good morning and goodbye Wass.