Would the WhatsApp business model of 2014 be able to afford the vital features nowadays of voice calls, video calls, large files, etc? Do you really believe tha

Would the WhatsApp business model of 2014 be able to afford the vital features nowadays of voice calls, video calls, large files, etc? Do you really believe that WhatsApp would have been able to get that 1 dollar from emerging markets as well, which have a tougher time performing online transactions?