The upcoming Style Savvy sequel, called Girls Mode 3: Kira Kira Code in Japan, will support Amiibo figures according the official game’s website.
The title will support all the released amiibo; still, it looks like some of them will give a special item. For example, the Mario amiibo will give you his iconic hat. For the moment, the special items are limited to Mario, Peach, Yoshi and Kirby figurines.
It was also confirmed that the title will feature over 19,000 different items (including clothing and accessories), so for those who don’t have Nintendo’s popular NFC figurines, they still will have a lot of content to play with.
Source: Nintendo Everything