While the timing of the announcement seems somewhat strange considering Jones hasn't even officially accepted the fight, it appears the UFC is pushing for the rematch to take place at the end of August.
It's likely Jones will answer the UFC's call once he returns home to the United States, but until then the fight won't be official. Jones exited his last fight at UFC 172 without any injuries after battering and bludgeoning Glover Teixeira over the course of five rounds.
The first fight between Jones and Gustafsson was a 'Fight of the Year' in 2013 and is widely considered one of the greatest title bouts in MMA history. Since their first fight, Gustafsson dispatched of previously undefeated prospect Jimi Manuway while Jones beat Teixeira and now the rematch is on the horizon.
UFC 177 is expected to take place on August 30 at the MGM Grand Garden Arena in Las Vegas.