Gardenbowl is Harras Harlaw (from Grey Garden) vs. Garlan Tyrell (from Highgarden). That will likely happen during the Ironborn invasion of the Reach in the next book.
Also a nice discussion of Harras "The Knight" Harlaw, one of my favorite minor characters and an underappreciated badass to boot.
Darkstar will be the next Vulture King.
Craster has 19 daughters and there are 19 castles on the Wall, coincidence I think not!