Abyssal Maw Absence

The Abyssal Maw was used in the advertising of the Cataclysm. Customers were told that this was the product there were purchasing. Now, however, I read that The Abyssal Maw dungeon was cut because "the storyline wasn't convincing enough/fitting.”
Storyline should not take precedence over what you have advertised and promised your customers. I, and possibly others, would see this as false advertising if the Abyssal Maw was not added.
Will the Abyssal Maw be implemented in Cataclysm as you have advertised?