http://n-touch.dk/index.php?nyhed=1316

Pokémon Diamond & Pearl were further revealed this morning. Boxart with the legendaries, plus a releasedate - 28. september 2006. The site quickly removed the data again, though, but see the link above for picture proof.

In the news article, you'll find a link for the first ever Pokémon D/P movie too Enjoy.