WhatsApp is undoubtedly one of the largest Instant Messaging app in the world with lots of features introduced almost every day. Not long ago, we heard that WhatsApp is testing real time location tracking which is already available on some iOS beta and some Android beta testers. By default it is not enabled.
Also, WhatsApp is testing a few features on Android (possibly on other platforms too) to let you cancel a text that hasn't been received yet, aside of the location sharing with chat friends, we also have a Snapchat-like disappearing post.
The location sharing as posted few days ago, if enabled you'll be able to share your location with trusted people for 1, 2, 5 minutes or indefinitely. This will also work in group chats.
WhatsApp is also testing a new feature similar to Snapchat's Stories. You could add a photo with a caption or a doodle and it will disappear in 24 hours.
We are still waiting to see any of these features if at all they’ll find their way to the normal whatsapp.