BBM's website announced today the release of the 2008 Fighters and Lions sets. The Fighters cards will be out on July 19 and the Lions cards will be out on July 26. So now the only team set left to be released this year is the Dragons set.
A few weeks ago, there was a discussion on japanesebaseball.com regarding Bikkuriman chocolate NPB seals. I had never heard of these before. They are apparently stickers with caricatures of Japanese players on them. The discussion has more details including a checklist and a link to the official website.