W2W2nite 9/18/21: Adult Swim

Premieres:Midnight ET/PT
Network: Adult Swim
“The Burning Sea”
Yukimaru departs from Bonito No. 2 alone to try to save Fena; the samurai waver between saving Fena and following the rules of the island; the Blue Giant comes under attack by the Rumble Rose.
"There are also other characters that come and go (also owned by the Warner Bros. Discovery conglomerate media company)."
Huh. Is that just referring to other characters from the show itself, or is this implying that the new season is going to have cameos from other WBD IPs