One of the long-running mysteries of thePokémonanime involves an item called the GS Ball. Ash Ketchum was sent to the Orange Islands in order to claim a mysterious gold and silverPoké Ball, which couldn't be transmitted by PC and no one could open. Ash went on a journey to the Johto region and delivered the GS Ball to Kurt in Azalea Town, who wanted to research it further. The mystery of the GS Ball is never resolved and Ash never found out why it couldn't be opened.
The cyclical nature of thePokémonanime meant that the GS Ball could easily be ignored by the producers of the show, as the intent was for each season to bring in new fans, and lose some over time as they got older. The new season of thePokémonanime has gone in a new direction and it's starting to feel as if Ash Ketchum's time as the protagonist is coming to an end. As such, the producers are running out of time to answer one of the long-running mysteries of the show, so there is a chance that the GS Ball could return.
Related:Will The Pokémon Anime End Without Explaining Who Ash Ketchum's Father Is?
What Was Meant To Be Inside The GS Ball
The producers of thePokémonanime did have a plan in mind for the GS Ball, but it was dropped over time.Pokémonanime director/storyboard artist Masamitsu Hidaka was interviewed byPokéBeach in 2008 and he revealed that the GS Ball was originally planned to contain Celebi. The intention was for Celebi to travel with Ash and his friends, but these plans changed when it was decided that Celebi would appear in one of thePokémonmovies. As such, the GS Ball was left with Kurt and there was never any intention to reveal its contents.
Could The GS Ball Return?
The perfect time to bring back the GS Ball would have been whenPokémon HeartGold & SoulSilverwere released for the Nintendo DS, but it hasn't been mentioned in years. As such, there isn't much of a chance that it will return.
With that being said, the current season of the anime involves Ash traveling to every region in thePokémon world and challenging the best trainers, as he is competing in thePokémon World Championships. Ash is currently assembling a dream team of powerful Pokémon, and there are some fans who are speculating that he will add a LegendaryPokémon to his team.
It's possible that the GS Ball could come back and be used to catch thePokémon that has appeared to Ash throughout his journey - Ho-Oh. Ash has been glimpsing Ho-Oh in the skies since the first episode of thePokémonanime, yet it has never had a major role in the story. It's possible that Ash is destined to catch Ho-Oh and that it will be his key to victory against Leon and the otherPokémon Champions. If this is the case, then Ash might need to claim the GS Ball and use it to catchthe elusive Pokémon.
Source: PokéBeach