According to the report Whatsapp is working on a UWP(Universal windows platform ).
In this latest release you will be able to log in to whatsapp without authenticate by your phone.
Whatsapp web version will work while your phone is offline. whatsapp can also gets feature like sync as you can get your all of chats on any device you are logging in your Whatsapp .
Wabetainfo on Twitter tweets about the UWP of Whatsapp but it’s not confirmed when it will get rolled. The Previous version of Whatsapp web is released in 2015, it requires the user phone authentication with connected to the internet. As users know we have to scan the QR code on the desktop by Whatsapp web section of Whatsapp on our phone.
Whatsapp may work as the Telegram does, it works on end-devices for users with synchronized chats.