I hope more gen 3, 4 and 6 rivalry , traning,battles and strategy but the gen 7 climate for friends and pokemon.One thing I really hope that they do is continue to treat characters the way they did in Sun and Moon and connect them to the story and your journey more. So far it kinda looks like they'll continue to do so. The way the characters were connected to the plot and the connections they had with each other certainly helped me feel more invested in the story, so hopefully Sword and Shield continues to do so.
Like humor but action too in games and anime.
Mr Mime and some getting a new shielding/protect move Magic Wall that disables always the oponents move for 3 turns.
Damp becoming immune to explosion from Powder, immunity to one hit KO moves and effect like Sturdy.
Double team creating real images on the battlefield like tokens that you need to hit and could chose. Multi-hit moves would work better. Between 3 and 6 images depending on speed difference with target. Moves and abilities who hit all targets, hail and sandstirm would get to shine.
Poison heal should like water absorb heal hp not only when poisoned but when goten hit by a oponents poison move.