With the recent changes on the test realm (Necrosis and BCB nerfs removed) Frost/Unholy tanking builds might become interesting again specifically for DW.
In principle, you can test 9/26/36 type builds on Live, too. The results should be similar.
Possible Talent Build on Live:
Talent Calculator - World of Warcraft
Possible Talent Build on the PTR:
Talent Calculator - World of Warcraft
Since this type of build hasn't been tested here, yet, I tried it during a Naxx-10 run on Live last night.
Buffs: LotP, Kings, MotW, Replenish (Resto Druid)
Rune Enchants: +4% Parry
Results - tonight with 9/26/36:
Tormens produced 3792 tps vs Loatheb
Results - 4 week old report with 10/54/7:
Tormens produced 4110 tps vs Loatheb
The results are rather disappointing. I used a DnD > IT > PS > BB > RP Dump > IT > PS > BB rotation. Initially, I ran with Reaping but couldn't find a good rotation to fit in the death runes for extra IT without delaying the next DnD. Damage (and therefore: threat) should be better on the PTR because of PS being buffed. It might be worth trying after the patch.