So happy that Bie and Esther are reuniting already! I didn't really like You're My Destiny so I hope this one will be better, they have great chemistry.
Usually Ch3 dramas are pre-produced and only air a few months after filming ends... but they've been filming for a while now so it makes sense that there's a lot of bts. James and Taew already finished their other drama together for next year so maybe they're close to finishing this one too.
They haven't finished filming this yet and it was never supposed to air in December. MDL always puts December if the official date is yet to be confirmed.