Somebody was talking about it in another thread not too long ago, but yet to see it myself. You'd assume it would be the kind of band Download would go for.
Will say that if Linkin Park and MCR tickets were to go on sale this week, there would be a lot of very panicked people looking forlornly at their wallets.
Could tie in to the start of the European shows, perhaps, but I'd say that's them off the table if they were ever a legitimate suggestion in the first place.