When you choose corporate learning channels, video communication has an advantage over written text. However, if you want to adapt material over time, you will encounter some problems: probably the same person will not be available for the shooting; if you choose to dub the video, your users will have not the best experience and so on.
Synthesia solution may be a good choice for you:
Create a video powered knowledge database that can be updated to reflect policy changes in 48 hrs.
Training and educational material can be internationalized, reducing cost and complexity by up to 10x.
Create professionally looking CEO announcements from anywhere. Only a smartphone is required.