Event ideas.

You could even do one that doesn't affect the story lines people have set up. Like hypothetical scenarios...

Oh! I would like one like, "The world without magic." Like a meteor was passing by and no one could use magic for 24 hours or something like that. Since the world revolves around magic for some time, even in items, utter chaos could break out and reactions to that would be fantastic!

Tfw I have 85% of an event made that

-Has motivation for darkies/indies/lighties equally 
-Doesn't use npc's that are too op or bland
-Has multiple objectives other than just fighting 
-Has no predetermined ending 
-Involves another nation
-Gives rewards based on participation in your specific objective, meaning whether you fought the boss or just helped evacuate, if you contributed hard in that area, you get a dope reward. Even gives rewards for support chars.
-Is too wide scale for any one person to steal the show. 
-Takes place in multiple locations that each provide a unique set of objectives and enemies, and you get to pick where you go. But all locations are considered of the utmost importance with high stakes and high reward as well as multiple plot opportunities for individual characters, entire guilds, and the entire country. 

I've worked on it in the event section and I wouldn't do it until well after the current event is over. As for simple events just for fun and keeping interest, just ask Merlin. He's suggested plenty of good small events.