There is a nice quest at the Tree of life where you are to beat 5 spirits. Just loved that little Terra at the end. Perhaps that is the most interesting and not boring quest i ever seen in whole game.
The idea i suggest is not Hard to realaze, so please pay some attention to it.
Optional Farming dungeon with Bosses only. Starting with LVL 30 (35) Players can enter lets say Arena area where 2-4 lesser level bosses are randomly spawned at once.
Exapmple: a party of 4 lvl 35 players want to farm some gems and cash, they get in Arena. And choose lvl 1 mode
Wave 1 - 5 random lvl 20 bosses spawn at once.
Wave 2 - 4 random lvl 25 bosses
Wave 3 - 2 random lvl 30 bosses
Each drops a standart chest. People get gems and sell the low level gear.
ANY 36 lvl player cant use that first level mode, getting level 2 mode with increased difficulty.
Its SO SIMPLE to make, pls add it to next update.
IF you are positive about that suggestion ill take some time to calculate a balanced model.
PS Most players do solo runs for low lvl Dungeons all the time. Let it just be a party experience.
These dungeons are to be challenging and not just easy-farm possibility due to RANDOM.
For example random 5 Othar Scar bosses spawn will require a good teamwork of full 35 lvl party.