Newcastle Jets have been chasing him for a while, I believe, so he might already know a bit about the A-League. I've heard about links to the MLS, so it's not completely unlikely. Not many big clubs will take a punt on an old, reasonably injury prone player. Probably more towards a 'marquee' type signing, though.
I'm just wildly speculating, of course!
Karagounis is on a similar level and he is being courted by Ange at the Victory.