Omer Bhatti is Blanket’s biological older brother. His mother Pia’s egg and his father Riz’s sperm were implanted into a young, healthy surrogate. After 9 months Blanket was born because Michael Jackson wanted to have a child that was phyically like Omer and legally his. So yes Omer has a place as a family based on this and because Michael Jackson was shown to have treated as the son he never really had.
Now, I hope this random speculation can end and shift the focus back to what killed Michael Jackson.