Well, all things considered, I would like to see Ash taking his Alola's Team with him to train and maybe quickly win battles to compensate his embarrassing defeats in the last episode, where he returned to the Normal Class. (Gosh, I hope this won't last much!).
Anyway, about the changes I would like to see in his Alola's team:
1º) Lycanroc:
+ Accelerock: Stay, as Dusk Form learns the moves of Midday and Midnight Forms.
+ Counter: Stay, as Dusk Form learns the moves of Midday and Midnight Forms.
+ Stone Hedge: Stay, as he needs it to use his Z-Move "Splintered Stormshards".
+ Fire Fang: Replacing Bite, and a potential consequence of him training with Incineroar.
2º) Incineroar:
>> We need him to see him battle after it collapsed after his evolution.
+ Fire Blast: Stay.
+ Darkest Lariat: Replaces Flame Charge, as it's the signature move of Incineroar. It could have learned it from Kukui's Incineroar.
+ Cross Chop: Replacing Cross Chop, possibly learned from Kukui's Incineroar.
+ Flamethrower: Replacing Fire Fang, as Flamethrower is very much better.
3º) Melmetal:
+ Double Iron Bash: Stays, as it's his signature move.
+ Flash Cannon: Stays, because the Steel Beam has the consequence of hurting the user.
+ Thunder Punch: Replaces Thunder Shock (from when it was Meltan). Good electric move which can be increased by "Iron Fist" too.
+ Superpower: With its size, weight and strength, a Fighting move would suit perfectly.
4º) Rowlet:
>> I would personally like him to lose the Everstone, as considering how he liked to wear a cape imitating Decidueye, it has to means he would like to evolve too. Not tomention that, as Decidueye, it could give Ash his second Ghost type officially.
+ Razor Leaf: Stays.
+ Seed Bomb: Stays, but I would like the Everstone be removed.
+ Brave Bird: Stays.
+ Shadow Sneak: Replacing Feather Dance, and learning a Ghost Move could be a sign of Rowlet being in the way to finally evolving.
