So there were 4 lyoko warriors, I don't know if that includes Jeremie because if it does then that's 5 lyoko warriors. Then there were only a few other people who actually knew about it but never actually went in or did much. I'm 100% okay with having more of an 'extra' character. Arndt already doesn't seem to be making much ties with anyone else, so his chances of finding out about Lyoko are close to none right now. Unless a warrior or two leaves, I'm fine with him just being a friend or a person who gets caught up in the mix from time to time rather than someone who fights X.A.N.A. and all that.