In 3.3, heroics will drop better Emblems.
If your group is capable of running heroics, 210 badges gets you full Tier 9.
210 badges also gets you the 5 pieces of current arena gear.

That will be one step worse then the arena gear offered in 3.3, but one step better then the honor only gear of 3.3.

Heroics are a gearing option for pvp toons.