So, I know they have said multiple times that Garrosh is not going to be corrupted or anything but with the 5.4 PTR stuff that was just posted on the front page it seems like they were lieing to us.
This icon is called "ability_garrosh_empowered_whirling_corruption"
This icon is called "ability_garrosh_touch_of_yshaarj"
Also, there's multiple icons of weapons that drop in the raid such as these two:
And as you can see, they both seem to have the sha look.
What are your thoughts on this?
Edit: This was just posted, guess that confirms everything haha
Could be a sha empowered Gorehowl.
Update: Siege of Orgrimmar Boss List
Immerseus – Tears of the Vale
The Fallen Protectors
Norushen – [PH]
Sha of Pride – The Seventh Sha [PH]
Galakras – Warlord Zaela's proto-drake [PH]
Iron Juggernaut
Kor'kron Dark Shaman – Haromm and Kardris trained thousands of shaman to whisper reverently to the elements to requisition their aid. The army of Garrosh, however, does not ask - they take what they desire in the name of the True Horde. Dark Shamanism forces the elements into servitude, twisting them into burned-out ash, corrupted waters, and toxic air.
General Nazgrim – Once a grunt in service of the former warchief, Thrall, General Nazgrim rose quickly through the ranks after overwhelming victories in Grizzly Hills and the sunken city of Vashj'ir. Fiercly loyal to the Horde and bound by a rigorous code of honor and duty, Nazgrim will hold the line for his warchief until his dying breath.
Malkorok
Spoils of Pandaria
Thok the Bloodthirsty
Siegecrafter Blackfuse
Paragons of the Klaxxi
Garrosh Hellscream – Warchief of the True Horde.
Source: http://ptr.wowhead.com/zone=6738
Update: New Vale