It would be wonderful to have a file replacement feature for Arc Videos.
Currently if a video needs editing, we would need to upload a new video file and delete the old video in Arc. Unfortunately, you would also need to go into each course or checkpoint and replace the video as well.
With the ability to replace the video file in Arc, we could update videos or edit a mistake in a video, without having to go into each area that the video exists and replace it.
Vimeo has a similar function that it could be modeled after - Replacing a video – Help Center
An ideal solution would be similar to Vimeo's feature, with the option to keep previous comments/stats, or reset them when replacing the video file.