Square Enix have announced Dragon Quest XII: The Flames of Fate, giving fans a new take on the popular JRPG series. According to series creator Yuji Horii, this game will be "Dragon Quest for adults," which seems to suggest that the game will go down a darker route story-wise than previous entries in the series. Also, fans have been told that their choices will impact the outcome of the story, while the combat system will apparently be "new". Whether this means a move towards real-time combat like we've seen in recent Final Fantasy titles is unclear, but it seems unlikely that Dragon Quest XII will have classic turn-based combat.
In terms of release dates and platforms, Square Enix has not provided any information yet. However, the company is targeting a simultaneous worldwide release, in contrast with the staggered releases we've seen in the past - previous series entry Dragon Quest XI: Echoes of an Elusive Age released in Japan in July 2017, and worldwide in September 2018.
Although it only reveals the game's logo, here's the trailer for the game that debuted during the livestream Square Enix held for Dragon Quest's 35th anniversary: