Rather than fates, make them S rank hunts that roam the map.

Also have smaller bosses, might consider them like A or B rank hunts.

Allow same level enemies you can solo and even farm stuff off of.

Have ele like gear from the start that upgrades kind like in potd.
You use it in this instance and become stronger in this instance.
Since they experiment with unique effects tied to logos and special gear, implement that fully.
Allow use to add stuff to our special instance only gear like increased sprint, chance to proc revive, chance to summon some uncontrollable pet that helps us fight, etc.