>>50493781Iv thought of a few reasons for that.
first off she is treated differently from other characters she is a named protagonist of the show (Ash, Dawn, and Goh are all named protags) so unlike other main cast characters who have goals, iris for example who became a dragon master(or champ) off screen while dawn has done gotten 0 development to her goal. Now this could be a good thing if you are a fan of Dawn if they want her to achieve her goals they now will be done on screen so she will get more screen time. this in turn could mean that we see another season with her as MC with Ash, the way that Dawn was left leaves her character very open to change Piplup her main is a Piplup forever all that needs to be done is wipe her team for new gen like what happens with Ash. I can see it happening like "I feel like I need to expand my team comp or contests" or something like that. I mean she got nothing for her team in her returns, not even a evo. her current stasis allows for her to be wiped clean completely for anything that is possibly planned in the future. compared to other past companions (iris, serena, and some of SM group) Dawns stories are incomplete while the other companion's story is in all but name fully completed she is in the same boat as Ash in a lot of ways that she will not be able to complete any of her goals because of these factors (shes to valuable to let go of and Piplup merch). other characters iris, serena, may* really have no reason to return their main mons are fully evolved and they have achieved their "goals". In the future, I see that Ash, Dawn, and Goh will never "reach there goals for these reasons(Goh is a little different because of his catching theme)