"Noragami Aragoto" aired its Season 2 finale Dec. 25, 2016, and three months later, there is still no official announcement on Season 3. However, according the Otakus of "Noragami Aragoto" on reddit, the show will return by late 2016 or early 2017.
Nearly all fans of "Noragami Aragoto" will agree the finale of Season 2 was epic, with the confrontation between Yato and Nora, Ebisu's "explosion," and the revelation of who the father is. With the proper introduction of the character of the father, Bones studio has left fans hankering for more awesome episodes. There certainly is content to create anime from.
However, one thing more fans seem keen about is why Yato said in Episode 12 of Season 2 if Hiyori and Yukine knew his real name, they would hate him. It has a lot to do with Yato's past and his relationship with father and Nora.
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Yato, previously known as Yaboku, was basically a puppet in the hands of father, his creator. As explained earlier, father is a merciless and sadistic being that enjoys torturing human beings, and Yato's only goal was to be acknowledged by father. To this end, he even killed humans without a second thought and was basically known as the murderous little child that obeyed his father's every order.
However, when someone calls him Yato by mistake, everything changes. He goes from being a remorseless killer to a god that genuinely wants to make people happy. This version of Yato is what Yukine and Hiyori love, and if they came to know of his monstrous path, Yato fears they would hate him.
Regardless, Yato has more than proved in the finale episode how much he has changed by choosing Yukine over Nora. Although fans love him all the more for it, there is a huge possibility Nora will exact revenge in the future, and possibly use father's help to do so.