So, apparently Zalashji has done nothing since Vanilla and will be gone in Cata. So I asked a GM about this:
This is what WoWwiki had to say about him
Zalashji
Gender Male
Race Naga (Humanoid)
Level 45
Health 2218
Reaction Alliance Horde
Location Zalashji's Den, Tanaris
Zalashji is a level 45 friendly naga who roams in and out of his dwelling, Zalashji's Den in Tanaris. [67, 32] Zalashji has no affiliation or function in the game so far.
But this is what a GM I asked a question about:
You may say that GMs know nothing but the ticket had been escalated and a blue post says that escalated tickets are passed onto a specialist GMs. Make of this what you will.
Will we find out before he leaves in Cata?