Great news! Daniel Hunt twitted on 19 October:
"I found a six year old unfinished Ladytron video down the back of the sofa, so I finished it. Will post when I get around to it".
I asked if it's the video for "International Dateline" and he confirmed. He also replied to me that they've got too busy with touring to finish it. Also it was originally envisaged to make a video for "Soft Power" too.
Later, Hunt twitted: "The end result I rather like, helped in no small part by the telegenicity of @marnieofficial".