Watching their trailer, their characters appear to be more developed and aesthetically pleasing to the player than in the google play games prior and the creatures they show look accurate to the books. They set the time to the 1800s, well before the time of Harry Potter and his friends. The books and movies take place in the 1990s, so, this will bring a unique atmosphere to the players. The two minute trailer released is exciting, it suggests one will be able to participate in the Hogwarts classes, specifically potions and the green houses, followed by leaving Hogwarts and going on fantastic adventures much like Newt Scamander’s, and being able to interact with other witches and wizard players in an immersive and brilliant way.
One can expect all new characters to be introduced due to the time period. Dumbledore was not born until 1881, so it is very unlikely that he will be in the games. Specific creatures we can hope and expect to see are hippogriffs, thestrals, nifflers, acromantulas, and even dragons. One can hope that hippogriffs and thestrals will be used as mounts and I hope there will be a quest where you can use nifflers to find treasures, perhaps even take one as a pet, although the books does state that nifflers are not great pets to keep in the house.