BBM's website has news up now for the first team set for 2011 - the Tokyo Yakult Swallows. As usual, it's a 99 card pack based set. There will be 77 "regular" cards for players, coaches and the manager, four combination cards featuring two players each, eight cards featuring (I think) current Swallows coaches when they were playing and a checklist card. There's also a nine card subset that I'm completely at a loss in attempting to translate (or more accurately, I don't understand either the Babel Fish or Google Translate interpretations).
There's a nine card "Active Leading Player" insert set, a couple different autograph insert sets and possible jersey cards for Norichika Aoki and Kyohei Muranaka (I think). The set will be released in late March.