Whoa, settle down...
There is one very big difference between KA and ASL.
Dragonair is/was a standalone airline WITH ITS OWN AIRCRAFT.
Should any of the crews (Airbus or Boeing pilots) ever come over to CX Freight or Mainline it will only be because KA aircraft are being repainted in CX colours. Nobody is losing out here.
All crews must retain their rank (why would any Captains ever move to the RHS of their own aircraft) but even then KA FO's could potentially see their times to command blow out.
Eventually, I suspect all crews will move to CX but don't forget that as yet this whole issue is an UNCONFIRMED RUMOUR anyhow.