Pygmy and goblin evolutionary link = halflings?

After seeing the pygmy in cataclysm i always wondered their history since pygmies share an unknown common ancestor with goblins. Since pygmies are a bit caveman when it comes to technological advancement and we see goblins being the technological juggernauts of azeroth being tied with gnomes. Part of me was curious if we will see a average intelligent small non-animal-like race, almost like azeroth's version of halflings from other fantasy works. They would be a small human-like race that was native to azeroth and has no connection to the titans whats so ever unlike dwarves and gnomes. If playable they can either join horde or the alliance and they prefer to worship the sun and clouds since they are a agricultural people and have large appetites. So they would have a sun-based priests/paladins and rain-shaman. Im sure you can have some island on azeroth be their home.

(again just a theory always made me wonder why we have every fantasy race under the sun in azeroth but not halflings. Would be cool but if it will never comes to be i dont mind.)