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>postgame giratina dungeon
>mini story with shaymin
>darkrai nightmare fight
>7 roaming legendaries
>summon dialga and palkia
>lore time with Cynthia in Canalave
>whole postgame subregion complete with afterstory involving galactic shenanigans to wake up heatran while catching national dex pokes, battle frontier and villa upgrades
Pretty comfy, most we got ever since was just random legendary portals or a battle dungeon, alola is the only other region I can think of that gives you more world to explore after becoming champion