Capcom announced the Grand Summer Twilight Festival in Monster Hunter World. The event will likely run similarly to the Spring Blossom Festival.
When is the Summer Twilight Festival? From July 13, 2018, to July 26, 2018. The event will last about two weeks.
During the event, almost all previously released event quests will be available: Just like during the Spring Blossom Festival, you will be able to play almost all event quests. This means you have two weeks to farm the special rewards from the quests. This ranges from gold crowns to special armor like Aloy and hero and warrior streamstones, which you need for augmenting.

New quests and outfits during the Summer Twilight Festival
New events and special outfits: New events await you that were specifically designed for the Summer Twilight Festival. So you can expect that there will again be a new event armor to acquire. The Skystrider will be beautifully adorned, and there are new outfits for Poogie and the wild expert.
There are supposed to be special surprises: Capcom also pointed out that the daily login bonus, the limited-time bounties, and other aspects in the game will hold special surprises. During the Spring Blossom Festival, there were daily bounties instead of weekly ones. Whether this will also be the case for the Summer Festival remains to be seen.
Summer Twilight Festival is perfect for newcomers
Not been in Monster Hunter World for long? If you are new to the game, the Summer Twilight Festival is the perfect opportunity for you. Because you have the chance to catch up on almost all previously missed content.
Behemoth for the summer festival? The Behemoth will be the next DLC monster coming to Monster Hunter World. The monster comes from the MMORPG Final Fantasy XIV. Capcom announced that they would demonstrate gameplay of the Behemoth for the first time in a livestream on July 15. That is two days after the start of the Summer Festival.
It is quite possible that the creature will come into the game at that time. However, this is speculative.
