Tsunekaz Ishihara, president and CEO of The Pokémon Company, was interviewed in a recent issue of Famitsu magazine. He gave the following statement at the end of the interview:

I can't give any details at the moment, but we're working on a new Wii game. We should be able to announce something before long. -- Tsunekaz Ishihara

It is unknown if this will be another WiiWare game, such as Pokémon Rumble, or a battle simulation game, such as Pokémon Battle Revolution. So far, there has only been one Pokémon game for the Wii sold on discs while there have been five WiiWare games released, only one of which has been available to users of non-Japanese Wii systems.

-Content from Bulbapedia
  • Heavy Ball that does great at catching heavy pokemon.

    Elm's Lab has an upstairs level, where the professor and his family live, his old house being occupied by Kotone/Hibiki and her/his family.

    New Moon Ball which catches pokemon that evolve with a moon stone.
  • Maps have been remade to match the design style used in Diamond, Pearl, and Platinum.
  • The Battle Tower west of Olivine City, introduced in Pokémon Crystal, returns, bringing with it the Battle Frontier introduced in Platinum.
  • Two new routes, Route 47 and Route 48, are introduced near Cianwood City. They lead to a new Safari Zone.

    Johto's Pokédex has been redesigned.
  • Mt. Silver is much bigger and Viridian Forest is not cut down.
  • Cerulean Cave and the Seafoam Islands remain as they were in Generation III (though Blaine still takes part of the Seafoam Islands), allowing the legendary Pokémon that live inside them to be battled.

    The PokéGear has been redesigned. There are a range of skins that can be used and changed at the player's will.

    Moltres, formerly found in Victory Road and Mt. Ember, can be found in Mt. Silver.
  • The Fighting Dojo in Saffron City takes a role similar to Sinnoh's Battleground.

    The Magnet Train's tracks can be seen overground in locations such as Route 32.