Seems like his wish of becoming a vampire got fulfilled at the end. Let's hope he doesn't start attacking Loris. I like that Indiana Jones kind of guy and the way he goes:"Wooooooooooow this is new and that is new and that is new and unexplored, too."
Well, if he doesn't start sucking on Indy, who will it be? The blacksmith, the blacksmith's helper, bad guys threatening poor adventurers/fair maidens or his researcher friend? Personally I'd like it to be a city guard with no friends, maybe a drunkard in the streets or something like that.
Or did he become a real ghoul/zombie thingy? The man-eating, flesh-eating kind? It's definitely something wild, untamed a feral side to his cool headed human side.