We're not liable to reduce the GCD. It's there for a reason. We can do that on rogues (and possibly hunters) because their button mashing is so limited by resource income, but we don't think warriors will be limited to the same degree. Making the bonus and cost only kick in above 100 is more along the lines of something we might consider, but realistically you'd probably only get a single attack before you dropped below 100 again, so it seems like it would constantly be turning on and off.
Source:
http://blue.mmo-champion.com/t/24702...in-inner-rage/
So, what do you think?
Makes sense for me, even though we will probably be force to stack haste until SS is at 1 sec Cast time.