I really don't think contacting Young Jijii will be easy. Even if I did, asking him to incorporate Sunto his AF story would make these chances less likely to happen. Therefore, I might as well just ask him to make a special filler chapter like they do in Dragon Ball Multiverse. Hopefully that'll get approved.
Anyway, here's Sunto in his design for that manga. And yes, he removed his tail. He really will become depressed upon hearing Pan's death from Icejin Ize, but Pan will use his Spirit Body technique to apologize to her mother, grandmother and Sunto for dying. She never thought that would happen, yet she is happy to know that her father killed Ize because of her actions making him an SSJ5. Sunto has been dating her for quite some time now, and his bond with her is super strong. Losing someone as precious as her can really affect one's life a lot.
Sunto belongs to me.
Dragon Ball AF made by Young Jijii.