Hmm, I do know that some schools prefer to rush immediatly while people still have their "finally something to do" feeling left.
So that's what it meant on the Elwiki huh :/ Fuck me, I bought the 3 wing one... I'm too lazy to gather 4 items so I'll stay with those. I could get it on my CN though and maybe my WS. The 3 wing thingies work since I don't care about stats.
Elwiki:
"Due to some technical issues, the following events have been restored for 1 week:
Dimension Witch Event
Dimension Witch Pre-Event"