Kirk's had daddy issues for three movies now, so having him actually meet his father will be closure of a sort on that thread.Does anyone even care about Kirk's dad? It's just an excuse to get Chris Hemsworth on board for the fourth movie so it doesn't flop. I'd rather see Shatner as Old Kirk if I had to choose but I'd prefer something brand new if a fourth movie ever happens. Let Pine stand on his own without Hemsworth or Shatner. Kirk is his role now.
Kirk Prime already had two last hurrahs in STVI and VII, I'm really not sure what he can bring to the Kelvin universe that already wasn't done between Nimoy and Quinto's Spocks in '09.