A330-300 may not do Europe flights from HKG , but pretty sure both 300s and 200s can operate Europe flights from Asia.,KE fly ICN-ZRH 4733 nm, ICN-VIE 4465 nm by A330-300, AF fly CDG-HKG and CDG-CAN by A330-200 though CX dont have any plan to deploy A330-200. A350 would be great for another option, but we still have to wait couple more years which may explain
geh065 mentioned that earlier A340-300 will stay in fleet till 2012.
note:
A330-300 max range 5,650 nm