In different pokemon forums there are recent threads about fans wanting old characters to return or cameo in the show. It made me think that one of the reasons people still keep up with the anime is that they wish to eventually see their favorite character come back in some capacity. In a way it's hope that still keeps them in the show for many years.
If there was a choice between having your favorite character return full time to the show for its final season, lets say near the end of 6th gen and lasting 3 years. Or allowing the show to continue for many more generation, without any old characters ever returning. Which of these two outcomes would you pick?