Merely having the infrastructure to handle the A380 is half the battle. The current BA time slot would put it at a great match for the A380 gate. The QF7 arrival might be kind of tricky, but there's plenty of leeway to move the flight around a couple hours in either direction to make it work. Given the seemingly full loads on the QF flight, I think that would be a winner for everyone. However, I think I read somewhere that the QF A380's aren't properly equipped to handle the weight of the extra fuel that would be needed, but could be retrofitted if needed.