It already ended in the raws. It feels like it's too soon to end it. And I feel like the author would not give us side stories since most of her works doesn't have side stories ╥﹏╥
And yes they have 3 children. It was twins Theo gave birth to The author is really creative trying out different mixture of palette of Theo and Seth in their children (≧∀≦) And yes the baby that just hatched may look like a boy but it's truly a girl like the one Seth or Theo (?) foresee