Black Desert Online: Drieghan
Those who are going to this year's EGX will get to play the upcoming Drieghan expansion for Black Desert Online. Pearl Abyss and Kakao Games say that they will show off this new content that features a large, mountainous area with "over 300 challenging quests" and a dragon boss. Dragon bosses are cool.

Kakao Games say that they will stream their booth live during EGX. You will be able to watch that on the official Black Desert Online Twitch channel.