Interesting ideas, and I have posted the werewolf idea before however:
1-Feral Nos is definitely dead. Either to the sun, or When you have sufficient prowess you give her a neck injury and Andrew fries her to a pile of ash. We see this for a fact, so she is toast. Merrick could be at the Nos lair chilling and learning all kinds of things.
2. Merrick is probably either dead, or prisoner of Astrid, who I suspect is the beast in the woods as a Tzimisce like vampire with a warform that could beat a gangrel warform and give a werewolf a run for it's money if she has celerity and is an elder as I suspect she is.
3. Our MC is an almost elder powered newbie, meaning he is low generation, and I am not convinced that he could not take a werewolf. Granted an Ahroun with average rage could do a real number on werewolves and vampires alike, however, a vampire with super claws, celerity which he has, invisibility, mental control, plus who knows what else would have an ahroun for lunch as long as he is not surprised. If in a room without mirrors, that Ahroun ain't going umbral, so he gets shredded. Then his blood feeds our already mighty MC and we become a raging maniac for a bit.
Peace