Seems like they're preparing a new part of Time Temple.

THAT wolrd tree has never appeared in any version of MapleStory. It's supposed to be holding the entire maple world I believe. Though I must agree is the most powerful item anyone can get his/her/it's hands on. I would guess the Black Mage already got to it, and that's how he became all mighty. Still, can someone fully check Magatias quests? I know there is a big clue there, but I havn't done them in over a year.

I'm pretty sure the Magatia quests made no mention of anything storyline related until the big reveal at the end, and that was basically just

 Spoiler

that Black Mage founded the town, so eh.