Seriously doubt anyone really has a wet dream about the A380. But logically it probably should go to the prime QF routes SYD-LHR, SYD-NRT and SYD-LAX. Thats still a lot of jobs for the mainline pilots.
And Captain Wally has a point. Well maintained older a/c overall are a good investment. Its not like they're 727s or DC-10s. The 767-300 is still a great ship as is the 744. The big issue is that there's just not enough of them right now.
And....... no-one wants wet-leased a/c do they? I wouldn't if it affected me.