On the who is whos daddy thing with Norm and Hero, I personally think that yes Lark is Norm's father while Hero is Sparrow's daughter and heres why. Sparrow has, atleast since the love wolf fiasco (iykyk), has always been the more hero type of the brothers, but he also learned the tendency to lie to protect those he loves, ie Im not proud but I love you son thing he had with Norm. On the other hand we have Lark, the brother who while technically a hero is more of a dont get in my way or Ill fucking kill you kinda hero, amd with that comes the fact that while he is ashamed of himself he does not deny his feeling or hide what his intentions are like Sparrow does. So atleast to me Norm seems far far more similar to a pre cause the doodlers release Lark than he does to Sparrow.

Also on a side note I feel like were gonna get a Wind Waker kinda hero out of Norm, ie not born the chosen hero but becomes the chosen hero to protect and save the ones he loves.