WhatsApp is soon introducing a video calling feature. According a reported published in Germany, first the iOS user and then the android users can chat on via WiFi. Further the report says, that users can also see themselves during the call, can switch between rear and front camera and can mute and unmute the microphone.
The version which will support WhatsApp on iOS will be 2.12.16.2. The recent version is 2.12.12. The next update of iOS will come with the new version of WhatsApp.
There will be multiple Chat Tabs too. With this tabs users can access individual tab in different ways.
We hope that it will not take as long as it took to introduce voice call feature on WhatsApp.