According to images and videos posted on WABetaInfo, the upcoming versions of the WhatsApp application on iPhone phones will support the ability to play YouTube clips within the same conversation.
The new feature is still being tested, allowing users to play video within the same conversation in a window that can be moved and placed anywhere in the conversation. The video can be viewed on full screen without problems.
The new feature is compatible with the iPhone 6 and beyond, due to its large screen. The software interfaces used to play video within the conversation are currently being developed by WhatsApp because this feature is not supported on iPhone, as Apple only provides on iPad computers.
The site monitored that feature in version 2.17.40 which recently arrived, which is still hidden so far, but may begin to arrive with other updates.