Could see Smeltz signing for Heart. I'm not sure anywhere outside of Asia is looking at him(?), and his best bet there would be a Japan gig.
He nearly went to Turkey at the beginning of last season- whether there is still interest I do not know.
Thing with Smeltz is that he has been the highest goal-scorer over the last two seasons of the A-League. He'll be able to get a gig somewhere. I certainly don't think he is god's gift- however I believe that he is no worse than Killen/more to his bow than Fallon (from what I've seen)- so no reason why there wouldn't be interest in him from clubs of Championship level around the world.