Along with the series' original system of mapping your own route to explore dungeons down below, you can now explore the skies above as well. Also, the game will now have two difficulty levels: normal and casual for those who find the game too challenging.
There will be seven unique classes each with their own roles. The classes are Dancers, Nightseekers, Fortresses, Swordsmen, Rune Masters, Medics, and Snipers.
Below is the official website.The game will be out this July in Japan.
世界樹の迷宮ＩＶ伝承の巨神 [Official Site]