If ask me (yes, I know what my Username is here lol.), Scar's not gone. There's that ghostly dark sound noise when Scar talking to Ushari about his plan for Kion. Then later in episodes such as The Harmattan, before Kion's scar bugs him is the same sound. To me, that "sound" is actually Scar. Kion & Scar are both my favorite lions here, no question.