i just want to suggest something like special dungeons. a very challenging dungeons (save disable inside) with different difficulties and some dungeon have restriction like limited potions or gears. short to full long dungeon run depends on the difficulty. new enemies and bosses with a low chance drop rate like 1-10%, maybe legend or set item? or special boss trophy (1% drop rate) with special character customization like auras or something (or add trophy cabinet 
). some items only drop once. the dungeon reset (enemies and boss) after you 'do a rest' so we can re-run it. i just wanna do and try something else than exp grinding. so we can also try our characters abilities and strength 
thank you.