I've never really thought that far ahead with Sin'ryk; I suppose he'd be akin to a Sage who cares little for Sith politics unless it directly affects him or those he cares about. He would be the type to take in seemingly weak apprentices (Crouching Tiger, Hidden Dragon and all that jazz) and then brings out their true potential. I'd like to think he would have children, pure-blooded or mixed, to continue his tribe's cultural practices since his loyalties lie more with the Sith species. Would you say there'd still be something of a friendship between them?