WhatsApp are currently working on new features to enable users preview messages before forwarding. This means that users will get one more step before forwarding a text, image, GIF, video, or any other content to multiple users.
This will enable WhatsApp users to retract their decision of forwarding a message, or add more people to the list (or even subtract people) before going ahead and forwarding the message.
WhatsApp tipster WABetaInfo spotted this feature in Android beta version 2.18.325. The tipster notes that WhatsApp is testing a forward preview feature that will pop up before you forward an item, so that a user can confirm or cancel the operation. This preview will apparently appear when you forward a message or media to two or more contacts only.
The tipster says that the feature will be available in the future, so it may be possible that you may not see it even if you’re on the latest beta version.