the current surplus is likely to delay direct promotions as it will create surpluses of OBM's. As soon as the economic downturn turns around in the other direction promotions will be on offer again. Given that until 787 or another type comes along, the only growth vehicle is the A380, ergo the promotions will only on A380.
I think N-BW is correct in that the a CSS with experience on the A380 is more likely to get the CSM A380 gig before a CSS with no A380 experience. And a flight attendant with experience on the A380 will more likely get a CSS A380 gig.
Its the carrot of promotion that QF will dangle for QAL crew to go to A380 in the longer term.