From Bendak on Eyes of the Beast:
In patch 7.1 (Oct. 25 NA, Oct. 26 EU), Alcaz Island in Dustwallow Marsh has turned into some kind of crazy robot island filled with deadly security bots, turrets, land mines, plus all of the evil gnomes who seemingly put them there. The place is a literal death trap. It begins with getting knocked off your flying mount with anti-aircraft fire as you approach the island, meaning you can only traverse this place on foot. The robots are easy enough to deal with (well, the non-elites anyway), but the turrets and hidden landmines will kill you in seconds.
Hidden deeper on the island are 4 new Mechanical Hunter pets. Remember that you’ll either need to be a gnome or goblin to tame these. If you’re not, you can get a Mecha-Bond Imprint Matrix from an Engineer or the AH:
In addition, there are new Hunter items that can drop from the robots on the island…