From from 9th to 16th September, 2019, regions of gene 1 will be available in eggs 7 km away, with their glittering forms unlocked. Deoxys will be attacked with any available form. Lower-level raids will include Deoxys counters. This bonus week is entitled Global Challenge, Global Hatches.
From September 16th to 23rd, Gen 5 arrives in Pokemon GO! Gen 5 Pokemon will be released in the wild and probably on raid and the glitzy Klink, Patrat and Lillipup will be discovered. Psystrike Mewtwo will be in legendary raids with its shiny shape available. This bonus week is entitled Unova Unveiling.
Both of these weeks also include 2x incubator efficiency.