My understanding it is a game designed to introduce the FF world to children.
From Kokatu
1) It’s got ATB-style combat. ATB, of course, stands for Active Time Battle, a staple of older Final Fantasy games (from IV to IX) that crosses menu-based combat with real-time turn gauges. “I’ve also changed it a little bit to add more of a [modern feeling] like current-generation games,” Chiba said, speaking through a translator. Your two main characters can also swap between big and small forms, which will affect their abilities both in combat and in the world.
2) The core gameplay will involve battling, collecting, and befriending monsters. Sort of like Pokémon with Final Fantasy creatures, which is a pretty compelling hook. Chiba wouldn’t go into detail on how this capturing system will work, but he did point out that you’ll be able to make your two main characters stack with monsters like behemoths and iron giants during combat.
3) This ain’t no free-to-play mobile game—we already know World of Final Fantasy is coming to PS4 and Vita, but Chiba says it’ll be a full-scale $60 game that takes advantage of both systems’ technical specs to get lots of monsters appearing on screen at once.
4) There’s an actual story. It involves two twins entering a world called Grimoire where all the Final Fantasy characters and monsters live. And Chiba says the plot won’t just be some rudimentary wrapper they slapped on to get you playing. “I personally worked on [Final Fantasys] VI, VII, and VIII so I’m trying to aim for that volume of a story that was in those titles,” Chiba said.
5) It’ll have all sorts of characters and settings from other FF games. The trailer, for example, shows Cloud (FFVII) and Cornelia Castle from the original Final Fantasy. Chiba says you’ll be able to interact with a ton of characters, and that many of them will have their own sidequests and plots to follow as you go through the game.
6) The chibi sprites are meant to appeal to non-Final Fantasy fans. In some ways, Chiba said, the goal of this game is to introduce a new generation of people to Final Fantasy, because today’s teens aren’t growing up with characters like Locke and Cecil anymore.
7) That said, Chiba still wants this to appeal to old-school Final Fantasy players. It’s easy to imagine the graphical style turning a lot of people off, though. “If these fans are looking for a realistic type of game, then this might not appeal to them,” Chiba said. “But World of Final Fantasy does have a lot of elements from the previous titles, and a lot of stuff that’s in there that Final Fantasy fans tend to like, so I feel like it’ll appeal to the new and the old fans.”
8) Chiba tends to work on dark, gritty, mature games. This is not that. In fact, he was given explicit orders from up above to do something lighter with World of Final Fantasy. “I actually had a direct order from [FF brand manager Shinji] Hashimoto in regards to how to approach this title,” Chiba said. “While my games are dark, I’m trying to make this more into a lighthearted, fun type of game. But at the same time, Final Fantasy games are known for their very heavy stories, so I’m trying to keep that in there to keep that Final Fantasy feel in the game.”