Nintendo Japan has revealed two new Nintendo 3DS themes Pokémon Enemy Organization - Plasma Gang (BW and B2W2) ポケモン 敵組織~プラズマ団(BW and B2W2). These themes cost 200yen each and are available for purchase in Japan starting on January 24th, 2018 on the Nintendo 3DS eShop store.

Pokémon Enemy Organization - Plasma Gang (BW)


Features: The artwork of N, Ghetsis, the sages and Genesect with the Plasma logo on the bottom screen.
Music: Battle! The Plasma Gang (戦闘!プラズマ団)

Pokémon Enemy Organization - Plasma Gang (B2W2)


Features: The artwork of N, Ghestis, Colress and other Plasma members with the Plasma logo on the bottom screen.
Music: Battle! The Plasma Gang (戦闘!プラズマ団)

Sources: https://www.nintendo.co.jp/hardware/3dsseries/theme/archive/index.html