How much longer will the Tempest shop be around for?

I know exactly how you feel, but I forced myself to do it before the end of the events that gave coins. Figured the shop could disappear any time after that.

I try to take care of stuff before the day of an event's last marked day on the calender. Gotta remember that sometimes nexon forgets there's a huge difference between 23:59 and 00:00.....