The new movie Arceus and the Jewel of Life is coming and we are preparing. The movie is the conclusion to the climatic battle between Palkia, Dialga, and Giratina with Arceus delivering the finale. You'll have to watch it to see what happens to Ash, Pikachu, Team Rocket..., Pokemon..., and the world! 

Arceus and the Jewel of Life: Coming soon!
(The video is the official trailer.)
Heartgold and Soulsilver are to release in the US and Europe In spring of 2010!
Above is a screenshot from the new games and below the PokeWalker. It is a devise that comes with all HG&SS games.
There will be a trio of Pokemon: Mystery Dungeon's. They are Keep Going! Blazing Adventure Squad!, Go For It!Adventure Squad!, and Let's Go! Adventure Squad!, all to release in the US soon. The games are centered around Arceus and differ by starting pokemon. Not much else is known at this time. Keep posted :D
List of confirmed HG&SS news:

+Both Kanto and Johto regions appear in the game.

+Groudon, Kyogre, & Rayquaza can be met and caught at level 50.

+The Pokeballs that where made from apricorns in Gold Silver and Crystal are back.

+Apricorns are now stored in a case.

+New PokeGear and map.

+There is a Red Gyarados in the Lake of Rage.

+The Battle Tower is now the Battle Frontier.

+A new area west of Cianwood City is now a Safari Zone.

+All 492 Pokemon are capable of following the player as like Pikachu in Yellow Version.

+There will be an Arceus Event where it you trade an arceus from Diamond, Pearl, or Platinum, and then take it with you to the Ruins of Alph, you will get to chose either a Giratina, Palkia, or Dialga all of with are at level 1.

+You could get a Notched-Ear Pichu. (Event)