Can't wait.
Personally, I'm happy they are completely shifting for season 2. I'm also of the opinion that season 1 was one of the greatest seasons of television I've ever watched.
That being said, I don't need a ton of everything I like, over and over. I'm sure fleshing out the storylines would have been great also, but they wouldn't have compared to what season 1 was, and in a way it would cheapen the first season. Also, with a star-studded cast, you wouldn't have gotten both back, so you'd immediately be sacrificing things.
Pizzolato had a story to tell, and he told it how he wanted. No need to ruin it by telling more to the story just because more can be told.
Time for a new story