Obviously it is impossible to make predictions one year out, but i will still give my predictions and it might be funny to look back at them in a year:
Men's 10 km open water (Wellbrock)
Women's 10 km open water (Beck)
Track cycling women's team sprint
Women's K1 (Funk)
Not sure about the 5th, probably one out of men's single sculls (Zeidler), women's track cycling sprint (Friedrich), eventing individual (Jung), dressage individual (Von Bredow-Werndl), men's 1500 m free (Wellbrock), men's K4 500 m, women's keirin (Friedrich), women's C1 (Herzog/Lilik), eventing team, dressage team, men's 400 m free (Märtens), men's field hockey, men's javelin throw (Weber), men's decathlon (Neugebauer), women's 25 m pistol (Vennekamp) or men's 25 m rapid fire pistol (Peter/Reitz).