Original/ Older Classes in LostArk?

Which classes are the original/ older classes, i thought we got all the older ones? So maybe Summoer/Reaper? I’m hoping for Scouter here.

per Roxxx Post -

"The May Content Update will include Destroyer, as previously announced.

To help set expectations here (while this could change) I would expect the older/“original” classes to roll out before we get the newest class in game, since this was the catch up plan long before Artist came out even in KR"