Optional item question.

[Valkyrie_Lenneth]

Hello everyone, as the title says I have a question about optional items. Specifically items from the moonfaire events. I missed the opportunity to do the quest this year for the endless summer set, and one of the pieces is a key item for a glamour set I'm wanting to make. My question is roughly how long does SE wait till they add such items to the optional item store after the said event has ended? Unfortunately I can't find any other item for this particular slot that works as a similar substitute for the look I want.

Next summer event, so roughly august of next year.