It depends on the entity that invokes you. If it's a male Holy Knight, you will be a man. If it's a woman, you will be a woman. This choice is yours at the beginning of the game. To fully grasp the power you acquire, a third-person perspective (Third Person Shooter) seems the most suitable. It also allows for better environmental management.
Yes and no. For purely structural reasons, not everything will be destructible, as it could pose problems with narrative logic. However, considering the omnipotence you will acquire, enemy bodies will be dismemberable, materials can break, destroy, even some structures.
In addition to the Rings, the player can obtain Artifacts, Rings, Crystals, Bracelets, and Wing upgrades. The use of armor or weapons is not planned at this time. Skill points are also not planned for the moment, but various statistics would allow for the improvement of equipment and skills, similar to Forspoken.
Although an open world seems most conducive to the satisfaction and experimentation of an entity with divine powers, it is crucial to respect a logic between opposing forces. The environment will reflect the worlds of humans and demons. These are the realms affected by confrontation choices. However, there will be other species reminiscent of heroic-fantasy lore. There may also be portals to reach places not directly on the same dimensional plane.
In terms of lore, both humans and demons can be your enemies in turn or at the same time. The best units of humans are the Holy Knights. Those of demons are the Demon Kings. For many of the Rings, these enemies possess them, granting them powerful abilities and making them difficult to defeat. Abilities that you will acquire. There are also many different types of enemies, reflecting various mythologies.