As much as I want to Asura, no Zengar sadly. I'd have a tough time explaining his attire =p and the big a** sword XD
Actually, I had three ideas for characters. While I could submit them all and try to RP them, I may overwhelm myself. So, if you must know the general ideas, here's at least one.
One idea was to make a character from Valm with the "Conqueror" class as his unique class. Though he fights on foot and not on a mount. His general story is that he shows up either in Plega or Yisstol looking for the "Voice of Naga" or Tiki if she even survived as well as any surviving Sheperds for unknown reasons. With a rumor around him that he was personally trained by Walhart, he's supposed to be like a third possible enemy or even a wild card of sorts to both the Shepards and Darrien and company.
I had two others but I want to keep those two hidden for now. The above "general idea" character is what I was trying to either flesh out more or tweak to fit the RP if possible.