Patrice Dufresne, Artistic Director of Assassin's Creed Odyssey, has posted several graphics on the web which suggest that Ubisoft considered excluding the latest installment of the silent assassin saga from the mainstream of the series. The illustrations were quickly removed, but, as we all know, nothing is lost on the Internet. All the images in question can be seen below.
On the available graphics we can see that during the production process the game had a completely different title - Odyssey: An Assassin's Creed Adventure. It is not known whether Odyssey was to become a new sub-series, a one-time experiment, or Ubisoft planned to change the convention of naming subsequent parts of the saga, as it did earlier in the case of the Might & Magic series (where Might & Magic: Heroes VI was released after Heroes of Might and Magic V). It is possible that Ubisoft remembered at the last minute how Activision tried to separate Modern Warfare from the Call of Duty series on the occasion of the premiere of Call of Duty: Modern Warfare 2 (initially promoted under the name Modern Warfare 2) and thanks to that it was much easier for them to sell the production entitled Assassin's Creed Odyssey than for Odyssey itself. The fact that the game entitled Odyssey already exists could also be a big obstacle.
Assassin's Creed Odyssey was released on October 5, 2018 on PC, PlayStation 4, Xbox One. It was also released on Switch exclusively in Japan.