Actually no.
They (Blizzard) are going to stick to their guns and keep telling everyone "Your new talents/spells/ect are balanced on 80th lvl and 80th lvl gear. It'll be A-OKAY. No worries!"
So, we'll get to WotLK. We'll level up to 80th lvl.
And things still won't be A-OKAY as they stated. And all it'll do is p!ss off enough folks to know that for the last 6 months everyone was telling them it wasn't fine, it wasn't okay and they (once again) didn't listen to us. They listened to whatever jack*ss that runs class balance (or at least has the majority of the say-so power in there).
Personally, once WotLK is done, my whole reason for playing WoW will be done. I'll have finished the storyline from Warcraft 3 and there will be nothing left they can hope to offer to keep me around. To be honest, I'm not sure I'll make it to see Arthas, I just might say "Good Enough". Once that happens, I'll click on my Account Management button on the
www.worldofwarcraft.com site, Cancel my Account and pray they don't have any kind of feedback where I can give them a written reason for my leaving (as it would be vulgar). I'll then uninstall WoW and never look back.