the only way any money should be spent to upgrade an airport to handle the A380 is if the airlines operating said airplane pay for it in fees over the course of time.
upgrades for concorde to fly into usairports seem to be wasted now that concorde is a museum piece (this is a real shame too! at least concorde could do something special )
At least with A-380 delays, there will be more time to sort this all out.
And bigger is not always better!
jon
PS: HI JUNIOR MAN!