There's more on the upcoming season 7 for Diablo III on Battle.net where they outline the rewards for participants. They say the new season is coming soon, as version 2.4.2 is now on the PTR, and they previously announced season 7 will begin on August 7th. Here's word on this season's cosmetic rewards: "In Season 7, we’re continuing the tradition of introducing new cosmetic rewards with each Season! In addition to an exclusive Portrait Frame and the usual rotating pieces of the Conqueror’s Transmogrification set, Season 7 will include a unique cosmetic pet for players who complete the fourth chapter of the Season Journey."