>>33343695DP adapted Team Galactic pretty closely
BW was going to adapt Team Plasma, but it had to be cut due to the earthquake/tsunami that struck Japan
XY's Team Flare arc was very different
Team Skull have been recurring villains in SM since the first episode, but just a trio of named Grunts who are even more incompetent than the Team Rocket trio
As for Aether, too early to tell; Gladion has Type: Null, but Lillie doesn't have Nebby and is an actual trainer with a Pokemon of her own, and we also have to take into account the fact that the anime will probably adapt the updated story in USUM rather than the original
