According to this thread from airliners.net, Asiana's ICN-HNL charters will turn into scheduled service from December 8. Asiana's website does not show this information, nor does it show HNL as a destination. However, this information is loaded and does show up in the various GDS's. You can also find this information on the various online booking and travel search sites.
The flights operate on Sunday and Thursday on the following schedule:
OZ232 ICN-HNL 2000-0900
OZ231 HNL-ICN 1100-1750 +1
The A330-300 will be used on these flights.