I really hope this act has a decent amount of content because I'm going to be a sad panda of it's 2-3hrs like most of the acts. I have a feeling they are relying on the fact that you have to play the Crusader from Act I if you want to see what he's like.
But, the Paladin (Crusader being the second coming) was my boy, I didn't touch any of the other characters and always played him with maces or morning stars so I'm excited to see him return. Going by the cinematic, I fucking hope they're doing more with the Horadrim.