I am really really hoping emotions come through a lot more. They brought back the crying in XY and XYZ and I loved it. I missed emotion so much. I want them to bring the emotion to a whole new level for the pokemon anime.
Pokemon Personalities - They did this in Unova, but only a few really shined, mainly Ash's Scraggy which seemed to be in every freaking episode after it hatched without evolving. They did an amazing job with it in XY and XYZ. Although, some lacked. I loved the pokemon having personalities again.
Pikachu's love for Ketchup. I have said this a thousands times already, but with Sun and Moon being more comedy right now, I am really really hoping ketchup comes back. Especially since one of the newest endings brought back Pikachu and a forest of ketchup.
Story - With no gyms, I think there really needs to be a story or story arcs. They have done this with Unova and Kalos, and they need to do it again. Especially now. I don't want every episode to have its own story and feel like it is in a totally different world like a lot of kid shows. It needs to have a story.
Uniqueness to the main character's pokemon - I would love to see more accessories on pokemon. And not just for show. I liked how Pignite's belt showed in Unova. I liked how Krookodile's sunglasses were unique. Pancham's glasses, Squirtle's glasses, ect. I want to see more uniqueness to the main character's pokemon. Like with Hawlucha in last weekends episode, he was wearing a cape and mask when he entered the battle. It would have been nice for it to have stayed on the entire battle.
Less uselessness for pokemon - Before I say anything, let me make it clear that I loved Ash's Kalos team and his Unova Pokemon. But some of them really got crapped on. Out of the entire saga, Hawlucha won maybe 3 battles. The anime made me love Hawlucha a lot more, but making him lose almost every single battle he was in was just bad. Pokemon also need to be shown more if caught and actually develop. Noivern got like 6 episodes, if that since Ash hatched it out of the Egg. And all though it got development, it was just left out a lot. At one point I thought the writers had forgotten they gave Ash Noibat.
I want him to catch more than 5 pokemon, but I want them all to be shown equally. Sinnoh did an amazing job with that in my opinion. Not only that, but he had 7 pokemon other than Pikachu and they all got some nice development. Unova he caught more pokemon, but almost all of them got more development than most of his Kalos Pokemon. If they are going to skip over pokemon like they did in Kalos and shaft them still with only 5 pokemon, I would rather him catch more pokemon.
More Character Dev - The main characters need to have devopment. With Sun and Moon possibly having a Group of 5 Traveling companions with Ash, there desperatley needs to be development for them. They don't need to wait till the second season to develop a character. Serena was an amazing character and she was left out until after the second season. If they are going to give character personality, they need to keep it. When Serena was first shown in XY, she had an amazing personality, but when she joined Ash, it just all vanished without a trace. The only reason a personality trait should change, if it is shown. Serena's just vanished.
There needs to be story, pokemon and character development, deep emotions, and uniqueness. If Sun and Moon can do all of that, combine everything they have learned from Unova and Kalos, Sun and Moon will be one of the best shows are television.