QF and NZ both use the 763 on Asian services. QF are also giving Australian Airlines 763s for their Asian services when they commence. Air Niugini is also about to replace their A310 with an leased NZ 763 so I don't think there will be any shortage of 767s at Asian airports.
Having said that, it is unlikely any other Asia-Pacific airlines will be introducing the 767 (or 757 for that matter) as a new type in their fleets. The A332 is smashing the 764 and nowhere is that more obvious than in Asia where a number of airlines operate or are about to introduce the A332 and none have shown much interest in the 764 despite a much hyped sales tour of a 764 through Asia and Australia a couple of years ago.