I brought some more Fortnite theories about my favorite SW character. I have collected a few things in the picture above, why I think Bossk will apear in the next season. Many things point to it.
The Weapons in Battle Royal, Exotic and regual Hunting riffle with stink bom effect( resable to Bossk 's Dioxis), Grenade launcher, Med-Mist Smoke Grenade (Revers of Bossk's Dioxis grenade), Flecher Kane voice is very similar as Bossk. Flecher its species belongs to the dog species, Bossk's ship name is "Hound's Tooth" YV-666 light freighter
The new Bounty Hunter animated series, witch are look's not so prommising,
The last two season theme resambel to Bounty hunters.

Hybrid has reason to fear, he will lose the throne, if Bossk apear in Fortnite.