It's more likely that Kieron will finally decide to be reincarnated. There was the scene in Taltos where Aliera chided him for doing nothing but sitting in the Paths of the Dead for thousands of years and Kieron mentions coming back if she gives away his sword, which she does. --- Well, the whole comment by Steve on this said that (paraphrasing) "Devera is conceived in the paths of the dead, which is why she can appear at various times and places in Dragaera." So Kieron being reincarnated and fathering Devera with Aliera in the "real" world doesn't really work.