The Total War series is going to be venturing to a new stage of history and a new tale of war, as Sega has applied for a trademark for a game called Total War Saga: Troy.
The entries in the Total War series show different time periods and locations, with the first game focusing on Japan, before moving to Medieval Europe, and onto Rome. The series has occasionally adapted fictitious settings, as was the case with the Total War: Warhammer games, but the games have mostly involved real factions from our own history. The series has combined real-time strategy battles with turn-based world-building sections on maps, which means that fans of fast-paced battles and those who love slowly creating an empire will find things to love in the Total War games.
It seems that the next Total War game will be traveling to the realm spoken of in the Iliad, as Sega has trademarked the name Total War Saga: Troy. The news comes from Twitter user @Nibellion, who suggests that the game might be announced at Gamescom 2019.
The last Total War Saga game was Total War Saga: Thrones of Brittania, which focused on several different factions vying for power on the British Isles in 878 AD. The fact that the Saga name is being used alongside Troy suggests that the game will focus on the Trojan War. It's likely that the game will follow the example of the 2004 Troy movie and remove all of the supernatural elements from the story and focus on the events from a historical perspective. There are other historically important moments related to the city of Troy (as it was rebuilt after its destruction by the Greeks), but the Trojan War is what it's most famous for, and is most likely what will be the focus of the game.
2019 has already received a Total War game in the form of Total War: Three Kingdoms, which focuses on the Three Kingdoms era of China's history. There have been annual releases for new Total War games going back to 2015, so it's likely that Total War Saga: Troy will be released in 2020.