There was a new posting on Jan 15/09 that it appears to have been removed from the PTR.
The shield wall change is very welcome, and long outstanding. SW is a Prot War's #1 'oh shit!' button. When incoming burst damage drops your health to 1-2%, the last thing you want to do is wait for a full GCD to elapse before you can use it.
At the brink of danger I stand. Clad in armour, shield and sword in hand.