Saurfang would have been the shit. They should have crippled Vol'jin, killed Sylvanas at Broken Shore, made Saurfang warchief with Nathanos taking control of the Forsaken. Then they "flesh out" Lillian Voss during the expansion to make her a more important part of the forsaken. Might have considered playing Horde again even if I would have to deal with elves...
Instead we're stuck with The Corpse Bride Waifu.