Up : Tbc pve content : Nerf or not?

Hi, question is simple, did you gonna nerf the actual content (t4-t5t-t6) on outland with the sunwell release or not?
(I'm not asking a nerf, on the contrary, I've hope for a "hard" pve content from start to the end, I just want to know if you gona do this to enjoy pre nerf boss before)

I post this topic again because I posted it more than one week ago, a lot of news topic received an answer and mine didnt ... (Yes/No/dont know, its a pretty simple answer I think ;D)