There was a post on here a while back where you could see the new tier 2 and Naxx gear if you were still stuck on 1.8 like us Mac users, anyone who could find that i would greatly appreciate
All you need to do is extract the tier 2 models and BLPs from a higher version, and also extract the itemdisplayinfo.dbc, then put them in their respective folders in World of Warcraft\Data\
EDIT: I'll make a patch MPQ for ya and UL it in a bit.
2ND EDIT:
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That has all Tier 2 and Tier 3 gear in it, along with the itemdisplayinfo.dbc, and the itemset.dbc. Put it in World of Warcraft\Data\