The first and foremost is the ongoing series of light novel, which is updated regularly. The 13th volume titled "Overlord 13: The Paladin of the Holy Kingdom (Part 2)" has been issued on April 27, 2018, in Japan. As for a manga adaptation, the latest chapter was published on July 26, 2018, and will be available for the US residents on May 21, 2019.
No doubt, you are aware that Overlord Season 3 covered light novel volumes 7 to 9. As a result, we now have at least 4 more volumes for another television adaptation. Besides, according to Kugane himself, he is about to release the 14th volume someday in 2019. Unfortunately, the author has yet to specify a particular date. A sad fact, but unlike previous years, Kugane is now releasing only one light novel per year. Yet the good news is that there is enough source material for Overlord Season 4.
As a result, the only matter we should care about is whether there will be Overlord Season 5, or we just see a two-cour fourth season of the anime. In the case of double-cour season, we should expect a 25-episode fourth installment. Even despite the fact that there is no official confirmation of the next season right now, it's clear that the announcement on the subject will be following soon. Also worth noting that the third installment of the anime was a huge success, given the statistics by MyAnimeList, 8.18 ~ 133,000 votes.
In addition, it will be useful to mention that even in December 2018, about 5,000 Blue Ray items of Overlord have been sold. The anime thereby takes the 9th place among all its rivals. As you know, money rules the world, and we doubt thus that there is at lest one anime studio capable of refusing revenue, isn't it? Summing up, everything is pointing out in favor of renewal. The only question remains unanswered is when Overlord is returning for Season 4.
Overlord Season 4 Release Date
Both Overlord Season 2 and 3 kicked off in 2018. In fact, we'd rather regarded both these seasons as a two-cour Season 2. But since the franchise officially contains three seasons, we should treat the upcoming installment as Overlord Season 4. We believe everyone agrees that Overlord won't return for a next season in 2019. At the same time, we don't rule out such a scenario completely. Nonetheless, the most likely release date seems to be next winter or even summer. However, if to be more precise, we'd dare to assume that Overlord will be coming back for Season 4 next fall or even in January 2021.
Of course, we're keeping hoping for the most positive case scenario. And of course, we are looking forward to the official confirmation of Season 4. Once Madhouse announces the renewal, we will update this page with the recent data. In addition, we will publish here the exact release date for the upcoming season, when it is revealed. Stay tuned for updates. We will keep you informed on the subject.
What's Overlord About?
The story focuses on a protagonist nicknamed Momonga. He is one of the advanced players of the popular DMMORPG called Yggdrasil. Momonga refused to exit the game when the servers were about to shut down. To his surprise, Momonga discovered that the game hasn't concluded. As a result, he found himself trapped in the form of his game avatar, a powerful and almighty skeleton, who now rules this virtual world. That's how Momonga turned into the Overlord. Having no way to escape the virtual reality, Momonga opted to explore the world to find out the way out.