Niantic is constantly trying to released new features for the game to keep the fans invested in the game and the latest update is the new research quest system where players can complete a quest and receive Legendary Pokemon.
According to some players, the reward for their first research breakthrough is another encounter with Moltres which means Raid Battles will not be the only place where you can catch a Legendary Pokemon now.
Those that would benefit from the new features will be those living in rural areas as they were having a hard time trying to actually get enough players to take down the Legendary Pokemon.
There will be two research quest, Special Research and Field Research. Field Research will be distributed via PokeStops while Special Research will be assigned by Professor Willow.
Players will be rewarded with a variety of items as well as a chance to encounter Legendary Pokemon.