So yes, Epoch's (relatively) new set entitled "Red Helmet 40th Anniversary" covers similar ground to Epoch's "Carp The First Victory 40th Anniversary" box set from last year and BBM's Carp Legend set from earlier this year. The biggest difference is that this new set contains active players as well as OB ones. This is actually the first of the box sets that Epoch has been doing since 2009 that contains active players (Epoch has done some odd little cards that are sold in capsule machines that feature active players).
Each box contains 64 cards - 61 cards in the base set and three "special" cards. As always, I got an opened set that only contained the base set. There are 32 cards for the current Carp team (including the manager Koichi Ogata and the mascot) and 29 cards for OB players.
The active players include Kenta Maeda, Hiroki Kokubo, Ryosuke Kikuchi, Takahiro Arai and Daichi Ohsera along with foreign players Kris Johnson, Duente Heath, Jesus Guzman and Mike Zagursky. Curiously, Brad Eldred, Rainel Rosario and Shota Dohbayashi are not included in the set. The OB players include pretty much everyone you'd expect - Koji Yamamoto, Sachio Kinugasa, Manabu Kitabeppu, Tomonori Maeda, Kenjiro Nomura, Tomoaki Kanemoto, Yoshiro Sotokoba, Yutaka Ohno and Yutaka Enatsu. Here's what the cards look like:
You can take a look at all the base set cards here and some of the "special cards" here.
I'd like to thank Ryan for picking up the set for me. And I just now realized that he did a post on this set today as well - as usual he has much more detail on the special cards than I do.