No more A330
There will be no new A330 for KA. There are 2 A330 doing wetlease for Air China but they are wetleased with crew. They will be returned within the next year.
I see no reason to join KA. As a captain here you can save money but as an FO with family- no way. I would say 5-7 years for command.
The negative aspects of the job I would list as
Roster, Nightstops,route network, management and HK pollution
Positive
Leave system and a good chance to see Asia on your leave.
As there are no expansion plans I wouldn't come here for now.