don't get your expectation too high, sadly this drama might never be aired...
to explain simply, this was produced by KAKAO ENT, who decided to stop spending money in kdrama production. so this drama which was in pre-production (meaning stage of editing, mixing, etc...) got stopped all of sudden. so the only chance it gets released is that kakao change their mind and start producing shows again, or that it gets bought by another company (but it doesn't seem like any company is interested to buy the show or it would have been bought way earlier)
It’s a bit strange to me that Viki always picks up series only after they’ve already been translated through…
not 100% but that's probably because the original channel/platform that has bought the show's licence wants people to watch the show from them, not from Viki. so they probably set a time limit.