This is actually something I like about Pokemon games. In previous generations, friendships/ family ties between the Gym leaders of different regions (And the Elite 4s and Champions) were seen-- Claire and Lance for example.
And according to Bulbapedia: "In later games, it is made apparent that Gym Leaders know each other and are acquainted with Gym Leaders from other regions, as well as with members of the Elite Four and Champions. Examples of this are Jasmine being friends with Erika, Volkner being friends with Flint, Brawly training with Bruno, and most Unova Gym Leaders coming together to fight Team Plasma's Seven Sages."
How would you think the Gym leaders from previous generations could and might have any relationships of any form with the new Trial leaders?
I would speculate some of the Gym leaders and/ or Elite 4 of previous generation coming in to Alola to challenge the trials and all.
And according to Bulbapedia: "In later games, it is made apparent that Gym Leaders know each other and are acquainted with Gym Leaders from other regions, as well as with members of the Elite Four and Champions. Examples of this are Jasmine being friends with Erika, Volkner being friends with Flint, Brawly training with Bruno, and most Unova Gym Leaders coming together to fight Team Plasma's Seven Sages."
How would you think the Gym leaders from previous generations could and might have any relationships of any form with the new Trial leaders?
I would speculate some of the Gym leaders and/ or Elite 4 of previous generation coming in to Alola to challenge the trials and all.