Actually, I feel like God is Agender. As I don't believe he(I say he because of the Christian "Father") is not bound to such things as sex or genetic influence. He doesn't have one gender nor is he ALL genders. He needs no sexual reproductive system and would not experience Gender Dysphoria or wish to change. He wouldn't experience the need to be attached to sexuality or gender.
But of course, I don't know for sure. Nobody knows till we meet him.