noooo! one child is not enough! i hereby predict and declare Turanya and Garrus will have a HOARD of crossbreed baby!! so sayeth i. ^^
They only have two biological kids. Turanya realises after Nandini that being pregnant with a hybrid is way too much stress on her body, even with biokinetic help. But don't worry, William marries another human/Turian hybrid and they have a BUNCH of kids. n__n
Kal = a precog.
So I'm sure he can predict his four kids and Garrus and Turanya's two biological/two adopted kids. He's just not saying anything. xD