The Multi-Universal War of Destiny part 16: Arby's here

So it looks like we know who entering our story. Starfire and Axel both learn about Discord through Bender and Master Chief returns with his ally The Arbiter and get aqquianted.

P.S: Bender, Skipper and Heloise are keeping their real reason of why he's not telling Dib this secret and Scorpion is in league with it as well as Sagat.