Blizzard has just posted a new overview of Delves in World of Warcraft: Midnight, outlining what changes compared to the War Within version of the system.
The expansion will introduce ten new Delves and a seasonal Nemesis Delve, as well as a new companion, Valeera Sanguinar, who can fill all three support roles.
What Changes In Midnight Delves
Midnight Delves will feature new layouts, enemies, and story variants tied directly to the expansion’s narrative. Some locations will also take place outdoors, which will allow you to travel using ground mounts instead of moving entirely through indoor spaces.
You can check which Delves are currently bountiful through the Delver’s Guide, track story variants on the map, and spend rewards like 
Undercoins and 
Voidlight Marl on treasures, renown items, and housing decorations.
Blizzard also confirmed that the system will continue to focus on replayability, with multiple storylines available inside each Delve.
You can read the full official post about Midnight’s New Delves from Blizzard below.
Unleash Your Skills in Midnight’s New Delves
Take on new challenges through ten new Delves and one new seasonal Nemesis Delve alongside a new NPC companion—legendary blood elf rogue Valeera Sanguinar. You’ll experience more of the story of Midnight interwoven through new quests and even experience the great outdoors—taking the adventure outside for the first time.
Experience new layouts and enemies with the same variety and replayability as you have grown to love. We’re also taking a couple of Delves into outdoor spaces where you’ll be able to use ground mounts to get around more easily. Players will also experience new quests to carry you through the overarching story in the zone.
Meet up with Valeera Sanguinar in Silvermoon City to get started on your journey through the various Delves and the stories they have waiting for you. Make sure to check the Delver’s Guide while you’re there to find out which Delves are bountiful that day. If you’re doing a little achievement hunting, you’ll also be able to mouseover the map to see what Story Variants the Delve is running. Each Delve has several storylines to play through.
Check in with Naleidea Rivergleam to view all the Delve Treasures available to purchase with Undercoins.You can also speak with Telemancer Astrandis to spend your Voidlight Marl on Renown track items and Housing decor.
Delves
Silvermoon City
|
Eversong Woods
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Harandar
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Isle of Quel’Danas
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Zul’Aman
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Voidstorm
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The legendary blood elf rogue Valeera Sanguinar will also join you as a new NPC companion taking on all three support roles players are familiar with.
This is just the beginning of what we have in store for Delves in Midnight. We look forward to joining you in these new adventures.
For more updates on Midnight and beyond, check out our WoW News Hub.