Exactly. Hard drives will also be obselete in the not too distant future, and a picture of a nand chip isn't the most descriptive. I think we should keep the film strip, since that's how film began, and these reels of film can only be used for video so you know what the icon means even if you have never seen the icon before.

Snakes have been associated with medicine since the Greek myth of Asclepius, and we use it in modern hospitals today, so I don't think the floppy disk save icon will need to change.