Zul'Aman has been cleared on the PTR's already and Warcry have the details.

From what we've seen so far, the loot is between Karazhan and SSC / TK in terms of quality, at item level 132. In addition to a single epic, each boss is reported to drop 2 Badges of Justice, with Zul'jin dropping 3. These can be redeemed for a new sets of gear that supports nearly every spec at costs of around 50-80 badges.