Not many that I can give without spoiling the ending of 2. At the end they gave quick glimpses at monsters that might be bosses in 3 and they showed a few new changes that pretty much mean Luka's gonna need to power up even more, but that's about it. A couple of monster designs were released too, I think.
Yeah, I really didn't like her. Luckily she really doesn't have an H-scene and at some point she gets stuck in a trash can so you don't have to see her full body. But she appears at the worst possible times and it's so annoying.
I really want to know if Luka is going to continue following his religion (don't spoil). I found the 4 thieves cute and the Harpy fight made me laugh. The hotel scene caught me offguard XD but otherwise it has been fun. I have a feeling I haven't seen the worse of the monsters yet.