A recent report had indicated that WhatsApp was working on allowing users to link their account to multiple devices. A new beta of WhatsApp for Android now reveals that the company is working on bringing a lot more features to the platform.
WhatsApp is currently working on a feature that will allow users to send media messages that expire after a set time. Dubbed Expiring Media, the media sent by a user will automatically disappear from the recipient's phone once it is viewed.
WhatsApp already allows users to revoke sent messages, but this feature is different as it will completely disappear from the chat with their being no indication whatsoever that a media file was sent in the chat. As of now, it does not look like WhatsApp will prevent users from taking screenshots of expiring media files, though this can change in a future build. There's also no timer functionality so that sent media files expire after a certain time but they should be presumably coming in the future.
As of now, the Expiring Media feature is only found in testing in the Android version of WhatsApp, though it should make its way to the beta version of the iOS app as well before its public release.