Also I'm not sure what you're implying with Draenei during Cata, they had next to nothing. Are you referring to Erunak? The problem with him is that again with every Draenei is that he's neutral, we also don't know if he's a part of the Alliance Draenei as many Broken don't affiliate themselves with either faction.
The Draenei need something that actually cements their position as important members of the Alliance and not a race of neutral Shamans and Priests/Paladins.
To further add to this we've seen no Draenei + Anduin action yet which was something I was very much expecting after Velen's short story.