As previously revealed, in Black & White 2, we will have the opportunity to battle legendary trainers of past generations in the Pokemon World Tournament area, and will also be able to download additional trainers through Nintendo Wi-Fi Connection. Here are some pictures and screenshots showing some of the trainers we will be able to face:
We also have some images revealing how the some of the characters we met in Black & White look now, two years later after the previous game's end:
You can see more Pokemon Black & White images here.
Now for the Pokedex 3D Pro. This will be an updated version of the Pokedex 3D, and is set to come out in Japan on July 14th for ¥1,500. This updated Pokedex also includes an AR funtion, as shown in one of the images below:
You can see more Pokedex 3D Pro images here.