The Horde brought Sethraliss back to life.
The Horde was also responsible for killing both Korthek and Mythraxx.
I think it is safe and fair to say that the Horde helped the devoted Sethrakk much more with their problems then the Alliance did.
Therefore Sethrak are a perfect candidate for becoming an allied race with the Horde.
Just my 2 cents.
My preferred is the Sethrak being neutral.
In which case it’s the Devoted that join the Horde and the Faithless who, seeking an ally to survive, join the Alliance.
Would add a neat race to both with slightly different flavoring to both, which would be slightly contrary to both sides. (peaceful Devoted on the Horde side, warlike Faithless on the Alliance.)
That said I just want them playable. Don’t care what side.
Sethrak for the players!
Stumbled upon this thread whilst looking for ideas on what the Sethrak racials would’ve been.
Now we look back and see how stupid it was that Alliance got… mechagnomes.
GIVE ME SETHRAK
There’s a somewhat more current thread too: