I can't help thinking the grand plan for Jetstar HK is a staging post for long haul A380 to LHR in orange & silver.
The only possible reason QF could pull off the Hong Kong-Heathrow in the Olympic year & lend the slots to BA is to have them in the bag when Jetstar A380's can take over the route and it doesn't appear as a transfer of business.
Qantas management ordered the wrong aircraft it the A380, when they should have ordered B777s. The Qantas A380 config is too heavy and not suited to routes over 12 hours due to excessive fuel burn.
Current QF management can not handle the loss of face & order the B777.
The only way to save this once great company is to change management.
Lets hope QF/Jetstar management have made this announcement too early once again and they fall on their sword.