This is not normally a set that I pick up - it's kind of a high end set and I typically don't like the designs of the high end sets. And since I get the Rookie Edition, 1st and 2nd Version and all the team sets each year it just seems kind of redundant to get this set as well. But for the third time in as many years I had a seller on Yahoo! Japan Auctions include a bonus set with something else that I won - I discovered that there was a 2016 Rookie Edition Premium set included with my 2018 Rookie Edition set
As I described above, the 2016 Rookie Edition Premium has three cards for each team. The three cards are for the three players who were taken in the fall 2015 draft who (in BBM's opinion anyway) had the best 2016 seasons (at least up until the time the set went to press which is probably end of August/beginning of September). This is not necessarily the top three picks in the draft for each team - there's a fourth round pick (Hiroto Fuku of the Dragons) and two fifth round picks (Ryoma Nishikawa of the Carp and Yasuhiro Yamamoto of the Giants) include in the set. The big names in the set are Shun Takayama, Louis Okoye, Eigoro Mogi, Masataka Yoshida, Shinnosuke Ogasawara, Junpei Takahashi and Shota Imanaga.
You can see all the cards for yourself over at Jambalaya.