Whatsapp developes an autonomous desktop version
WhatsApp is working on a system that allows a simultaneous use of the same account on multiple devices, just like Telegram.
Idea is to implement a cross-platform solution and gain access to an account even when mobile device is turned off. If successful, users will be able to use WhatsApp Web without the need of having a stable internet connection on their smartphones.
At the moment, the system is in development stage and update release date is unknown.