Thanks to Karubi (again!) we have new images which reveal some special events coming to Pokémon + Nobunaga. Here are some details:
Hideyoshi’s Reshiram – Event detailing Hideyoshi’s partner Reshiram. Available from March 31st with no end date.
Okuni & Whirlipede (Episode) – Available to download from the 14th of April to the 11th of May
Croagunkappear in your game with the password “28セメフフロヒ”
Emolga appear in your game with the password “テヘビトカ1リミ”
UPD: I wanted to find a clearer picture in which I could actually read the names, but for now we’re going to have to trust what Serebii says. This list is directly from him and may not be 100% accurate unless he’s hiding a higher resolution image. So take it with a small grain of salt.