Well, I've already shown you one of our two Wyvern riders: that's an elite book candidate, and we all seemed to agree we had no interest in her.
The game gives us 2 dragon riders/dragon knights and two Pegasus rider/Pegasus knights, tops...
I'm not sure I'd recommend Dean, Eda's older brother and one of the guys we saw chatting in the preamble, for the wrath book, for reasons we'll see in a map or two, when he joins. I'm not sure I'd recommend the other Pegasus Knight for anything.