Star Wars Outlaws, S.T.A.L.K.E.R. 2: Heart of Chornobyl, Towerborne, Avowed, and Ara: History Untold are some confirmed titles.
First-party titles like Indiana Jones and the Great Circle and Starfield: Shattered Space will also receive theater presentations.
The livestream will outline feedback from the previous PTR while showcasing the new seasonal activity and balance changes.
The new activity, Infernal Hordes, sees players battling against waves of enemies, culminating in a battle with the Fell Council.
Blizzard Entertainment has released a new cinematic for the upcoming expansion, which is due out under a month from now, on August 26.
"Because we operate as a service to our players, we always remain open-minded to re-evaluating our decisions based on your actions and feedback," says director Aaron Keller.
Narrative designer Eleni Rivera-Colon also reveals that players will explore the Spirit Realm alongside Nahantu in the upcoming expansion.
Players can try out the hero shooter's next Support character until July 21st. She joins the roster full-time on August 20th.
Minigames are a common trend with this year's longest games.
Harnessing the power of the Spirit Guardians, the new Spiritborn class can unleash all kinds of elemental attacks on enemies.
The latest Support for the hero shooter can speed-boost allies, glide through the air and call down an Orbital Ray to increase damage.
Members of the action RPG's development team will talk about the upcoming class' design, gameplay, lore, and more.
Reinhardt, Bastion and Arcee transform into Optimus Prime, Bastion and Sojourn, while Ramattra assumes the role of Megatron.
Quality of life changes also include an altar to respawn a boss to fight them again, not having to craft sigils for The Beast in Ice, and more.
Season 5 introduces the Infernal Hordes - a wave-based activity ending in a boss fight against the Fell Council for rewards.
The company is promising its biggest Gamescom booth to date, with games such as Diablo 4: Vessel of Hatred and World of Warcraft: The War Within also confirmed.
Adding to the free-to-play hero shooter's impressive resume of collaborations is Hasbro's robot-centric toy and media franchise.
Summer Games, a new Quickplay: Hacked and Hero Mastery Challenges for Soldier 76 and Kiriko are also coming this season.
The next season of Blizzard's hero shooter is Tokusatsu-themed, with skins inspired by Kamen Rider and Ultraman inbound.
World of Warcraft will kick off the Worldsoul Saga with the first expansion of the planned trilogy, The War Within, in August.