Who thinks there should be a sub-Warlock class in WOW called Fellock?

I just made an Orc Warlock and had to kill Yarrog Baneshadow in the Burning Blade Coven (starting area cave) and he was using spells such as Fel Immolate and Fel Fireball. I just thought it would be cool if Blizzard made a subclass to choose of a Warlock called Fellock with everyhting the same except the spells have "Fel" in the name and possibly green flaming eyes on the characters. And if anyone knows, is Blizzard thinking of putting something like this in World of Warcract in any future expansions?