The next booster pack for Pokémon TCG Pocket, Secluded Springs, will be released on August 28th. The pack features three Generation Two legendary beasts – Raikou, Entei, and Suicune – and promises more Pokémon from the Johto and Hoenn regions.
Additionally, players can look forward to a Zoroark Drop Event starting September 3rd, a Wonder Pick Event featuring Miltank and Phanpy on September 15th, among other regular releases. The company has also revamped trading mechanics, eliminating the need for an extra currency and avoiding previous fan art mistakes.
The regular release of new booster packs ensures a steady stream of content for the mobile game.
Source: https://www.eurogamer.net/pokemon-tcg-pockets-next-booster-pack-out-next-week