Fetch and looting quests? Oh my...
My concept for questing was to have quests(and I mean quests, like dungeons) work for single player. Dungeons and quests were completely clientside, for a better experience. However, you could party with up to 3 other players(for a total of 4) to play an alternate version of the dungeon that was modified for 4 players. This would include cooperation for puzzles, and simplified baddies(because serverside baddies have to be simplified compared to what you can accomplish with clientside) and alternate layouts(for example being able to throw a team member across a gap to open an alternate passage).
A lot of work, but I don't like the way quests are done on Graal in its current status, where it's some sort of mangled mix of clientside and serverside, or worse yet, serverside so much that simply entering a dungeon allows you to walk through it because someone else has completed it all.