With the arrival of Patch 3.2, let's take stock of what's going on with Death Knights and how things have turned out for us. The Patch 3.2 PTR's been the testing grounds for a few major changes to various trees and play styles, and now it'll be interesting to see how things play out on the live server. You can see the basic size of the Death Knight changes in this original analysis of the patch changes, but some things have changed since then, as we will note below.
We do get a couple hits to tanking this patch. Frost Presence will be switching from a health buff to a stamina buff, and Veteran of the Third War will be nerfed to only a 3% stamina gain at the top level. Toughness is also dropping from 15% to 10% armor buffed at its top level. Honestly, I don't think these changes alone will be so bad as to drop us too low on the tanking totem pole, especially since we've been up at the top so long.