This post has wrong information. The best possible rotation is Shield Slam + brainless Devastate spam, for a more detailed calculation see my post below.
My own calculations state otherwise.
I just logged in after a 4 months break, and saw Devastate changed. I reprogrammed my old special ability simulator with the new values and filled in my stats. These are the results:
Stats:
Attack Power: 3800;Block Value 1400:Critical Strike 7%;Expertise 8.5 %;
Weapon:
Speed 1.6; DPS 188.1; (Sorthalis)
Talents/Debuffs/Glyphs:
Improved Revenge, Impale, Mongoose (average over time),Glyph of Devastate, Mange/Trauma, CoR/Faerie Fire
Results:
Shield Slam 3397
Revenge /w S&B proc possibility 2695
Devastate /w S&B proc possibility 2490
Revenge 2312
Heroic Throw 2269
Shockwave 2255
Concussion Blow 2166
Devastate 2118
Rend above 75% 1790
Thunder Clap 1574
Rend 1326
Note that these threat values are calculated off unbuffed stats. Concussion Blow and Shockwave scale better than Devastate and thus will out-scale Devastate further in a raid-buffed scenario.
The
conclusion is that the ideal cycle has not changed much. Now, you want to use your long CDs (HT,SW,CB)
before your Shield Slams comes off the cooldown instead of just queuing them after Shield Slam as soon as they come off the cooldown.
The best threat cycle changes from:
Priority cycle pre Devastate buff:
1. Shield Slam
2. Revenge
3.1 Heroic Throw 3.2 Shockwave 3.3 Concussion Blow 3.4 Devastate
4. Thunder Clap
to:
Priority cycle post Devastate buff:
1. Shield Slam
2. Revenge
3. Devastate
4.1 Heroic Throw 4.2 Shockwave 4.3 Concussion Blow
You read this priority cycle like this: If you get a S&B proc you just start the cycle over again and do the highest threat move; so if Revenge is on CD use Devastate.
Your second move after you shield slamed (it does not matter if was a S&B proc or not) should be a threat move off number four (4.1 Heroic Throw 4.2 Shockwave 4.3 Concussion Blow); if these are on cooldown, just start the cycle again and do the highest threat move.
An example:
SS->Revenge->S&B SS-->Devastate-->Heroic Throw->
SS->Revenge->Devastate->Shockwave->
SS->Revenge->Devastate->Concussion Blow->
SS->Rev->S&B SS->Dev->S&B SS->Rev->Dev->Dev
SS->....
