Found this on the forums:
"EC: After I discussed with our team that they agreed to have a soul crystal engraving event at the beginning of May if everything goes under their plan.
EC: The whip event wont not be affected and it will run as usual.Ty"
Edit:
[11:11:20 PM] Crystal Warren: has there been any word about a soul crystal event yet?
[11:17:38 PM] EC Master: yes, they have agreed to have a soul crystal event at the beginning of April.Ty
[11:18:08 PM] Crystal Warren: April or may?
[11:21:07 PM] EC Master: April they have push it forward
[11:21:28 PM] Crystal Warren: ah ok ty very much
[11:22:48 PM] EC Master: have a nice day
[11:22:53 PM] Crystal Warren: u2
here is the link to the forum post, its at the bottom of the first page.
http://forum.r2games.com/showthread.php?110961-SC-Whip-events&highlight=soul+crystalAsh