I don't have anything against graphical violence or violence against children, so they don't have to shy away from anything for me, BUT I don't want it to be like been hit with a sledge hammer in the manipulative ME3 way.
The whole opening sequence of that game with the child was one of the worst things I've ever seen in any game.
I didn't see a scene and was forced to think for myself or feel an emotional impact because of prior decisions or relationship to certain people. I saw a child dying and was supposed to feel sad, because said child died. This child was 2 minutes earlier introduced with 20 seconds of dialog.... why should I care?
In my eyes it was just handled poorly and that's what I don't want to see with this game.
Don't show gore or violence because you want to show gore or violence and for the love of <insert name of your deity here> don't try to force a emotion onto us.
The brutal slaughter of a npc you learned to know over the course of a portion of game will have an impact regardless of the music you play, it doesn't have to be the sad sad music that tries to make you weep. If the character was well written I either grew to like or to hate him and different people tend to have a different perception of characters, so some will say it was sad and others will be pretty happy, but the player should have to make up his own mind about that.
What I'm trying to say: no hand holding in the emotions department please.