A late night update to Pokemon Go's Game Master file hints at big additions to the game. The Game Master file is a configuration file for the app, downloaded straight from the game's server to provide critical data to a player's copy of the game. This file contains critical information about Pokemon species, animations, and stats. Basically, Pokemon Go can't add any new items or Pokemon without first updating the Game Master file.
Last night, Niantic pushed an automatic update to the Game Master file that added several additions to the game. The most prominent of these additions are four new berries, each of which help players catch Pokemon in different ways. The berries are:
Bluk Berry, which prevents Pokemon from jumping.
Nanab Berry, which prevents Pokemon from attacking.
Pinap Berry, which slows down the speed of the shrinking targeting circle.
Wepar Berry, which enlarges the targeting circle.
The Game Master file also contains X Attack, X Defense, and X Miracle items, which should be used to provide boosts during Gym Battles.
None of the items can currently be obtained, as the items can't be locked until a trainer hits Level 100. Likely, this is just so Niantic can add the items into the backend of the game without a player accidentally unlocking them. Interestingly, Niantic also gave the Master Ball a level lock, which could indicate plans to add the ultimate Pokeball to the game in the near future.
Other new additions include new avatar customization features that will allow the player to add accessories like backpacks, necklaces, and belts to their avatar.
WWG will report on new Pokemon Go updates as they become available.