Although the tenth generation of Pokémon is far away, it would be the perfect opportunity to close the story of a character who has remained “up in the air.” The future of the character in question would be iron, one of the guardians of Pearl Clan in Legends: Arceus. Although you will remember him for being the leader of the Metro Battle in Unova
Thus, the tenth generation could reveal the end of Fero. Since at the end The adventure in Hisui is not revealed to us if he was able to return to his correct time or was trapped in the region. And although it can be understood that Fero will not appear in future games, a simple mention from an NPC about his future should be enough. It wouldn’t even be necessary to mention him, something like “a time traveler” could serve to close his story.
Furthermore t here is the possibility that the next games will be remakes of Pokémon Black and White
The lack of knowledge of Fero’s fate can frustrate the most fans of the saga, being a “better” tragic ending to this current mystery. The opportunity to get answers about Fero could arise in the Generation 10 Pokémon games, either in the remakes, in a “Legends” game or a new title such as Scarlet and Purple.