Niantic has announced that more Gift Stickers will be added to Pokémon GO and will be available in the shop.

More Gift stickers coming to the Stickers section of the shop

Trainers, Ever feel like you need a wider variety of Gift stickers to express the sheer depths of the emotions you have for your friends? Well, worry no longer—new Gift stickers are coming! We’re excited to announce that you will soon be able to get more Gift stickers in the shop. Be sure to follow us on social media, opt in to receiving push notifications, and subscribe to our emails to stay updated on when the new Gift stickers become available.

Please be aware of your surroundings and follow guidance from local health authorities when playing Pokémon GO. Upcoming events are subject to change.

Source: https://pokemongolive.com/en/post/giftstickers-update/