Throughout some of the books about the RCs, it is mentioned that some of the Null ARCs are hunting for Ko Sai. Kal Skirata says that he is having them hunt her so that she can stop or reverse the aging process, giving the clones a normal life-span.
Did they eventually find her? If so, what happened to her?
Does anybody know these things, or are they going to be expanded on later on in one of the TV shows?