For the gamescom 2017 Has Blizzard a lot planned, so much so that there will even be a video preview on Monday, August 21st.
On the 23rd, members of all development teams will perform the grand unveiling ceremony on the main stage of the Blizzard booth. Of course, the event will be live via Blizzards gamescom page transfer.

During the entire gamescom, visitors to the Blizzard can get an insight into the latest features. A trial round can also be made directly on the computers available.
In addition to news about the games, there is also a large Blizzard Cosplay competition, a dance competition and 2 performances from Video Games Live. So entertainment is provided. If you can't make it to Cologne in person, you can also follow all of these activities via live stream.

Here is a brief overview of the new features awaiting fans of the individual games:

Blizzard Overwatch:

• The brand new map can be played.
• The new Overwatch animated short is premiering.
• A live performance by Overwatch voice actor and FX artist Rachel Day shows a presentation of her evening on Heroes Doomfist (Friday).

Hearthstone:

• New features for Fireside Gatherings.
• Hearthstone Global Games finals.

World of Warcraft:

• Patch 7.3 information and liveraid on the new dungeon.
• Final of the World of Warcraft European Championship with a prize pool of US $ 100,000.
• The Blizzard booth offers a lifelike dark moon fair. With airbrush makeup station and photo shoot.

Heroes of the Storm:

• Visitors can try out the new champion.
• Live matches from well-known community members and professional players such as Team Liquid and Team Expert.

Starcraft 2:

• New Coop Commander for trial play.
• Starcraft: Remastered gaming opportunities.
• Live matches with White-Ra, iNcontroL and TLO.

Diablo 3:

• The DLC "Return of the Necromancer" can be played.

You can find all further information and the exact schedule on the Blizzard Gamescom homepage find.