Board Thread:Questions and Answers/@comment-64.233.173.223-20150425034435/@comment-25889587-20150425041421

If you think the new event is eventually coming, I suggest you wait for the event. It REALLY does increase the chance of you getting the S-rank treasures.

The only problem with this is that we are not sure when then event is going to come. So, it all depends on your intuition.