Update: The official site has updated with a high quality and more complete version of the ad. It can be viewed here. The video reveals that Ecruteak City will have some trees with orange-colored leaves, as though it were autumn. Segments not seen in the low-quality video include transferring a Pokémon to the PokéWalker. It also shows what transferring Arceus will allow players to do in HeartGold and SoulSilver.
Filb.de and 2ch.net have recently shown a low-quality video featuring a commercial for the upcoming games Pokémon HeartGold and SoulSilver. The commercial promotes the pre-ordering of the games on Saturday, July 4. Due to the lackluster quality of the video, not much information can be provided.
The things that can be seen in the video include how certain buildings and locations will look like. The newly-updated Ecruteak and BlackthornGyms can also be seen. The back sprites of two Pokémon are also shown to look similar to the ones in Diamond, Pearl and Platinum. Previously reported things, like the new Pokédex interface and the screen when choosing a starter Pokémon, also appear. Also in the video are 3-D animations of Ho-Oh and Lugia that appear to be the games' start screens.