First off I wanted to say that I love Tera as it is, I just wish there was a bit more of a variety of types of things to do. I got really excited when I read in the New Launch Features that they were adding "new quests that take TERA far beyond repetitive "hunt," "gather," and "deliver" tasks". It was very disappointing to not find anything like this added.

Below are some ideas. I'm just brainstorming, I know they might not all be viable. Please let me know if any exist or are planned. I would love to hear more ideas from the community. I don't know that they would ever add any of this but I figure it can't hurt to make some suggestions.

Horse Races.
Fashion Contests
Scavenger Hunts: find hidden items around the world based on clues that are given.
Mazes w/ puzzles & Challenges that are randomized (ex: Cube of Fate from PWI).
Conversations w/ multiple choices that make a real difference.
Interactive Relationships w/ NPCs, they like/dislike you & it will have consequences.
Various Role Playing & Action Oriented Events, some with Live NPC interaction.
Various PvP modes like Capture the Flag, King of the Hill, etc.
Player / Guild housing & Towns that could be customized, attacked & defended.
Player Generated Content: ex: fashion/creature design contest, winner makes it in game.
Players actions (combat, role play, vote) that change the world & shape the story.