Battle.net has a first look at Season 6 rewards for Diablo III, noting that the version 2.4.1 patch that will kick off the new season will go live soon. They outline various cosmetic rewards and also offer a detailed rundowns on the various class-specific sets that will be the Haedrig's Gift rewards for the season. They also list the Season's Journey tasks to earn more stash space:

• Complete a Torment X Nephalem Rift in under 4 minutes
• Level 3 Legendary Gems to Rank 55 or highter
• Complete any two Conquests
• Kill Rakanoth in under 15 seconds on Torment X
• Slay Greed on Torment X
• Clear Greater Rift 60 Solo