WhatsApp is testing a new Flash call feature for account verification. It will make a missed call on your number and cross check it in your call history to approve your login.
Hide ‘Online’ status
WhatsApp will soon let you hide your ‘online’ status. You will be able to show your online status to either everyone or the contacts permitted to see your 'Last Seen' indicator.
Delete sent messages after 2 days
"Delete for Everyone" feature was rolled out in 2017 and the current time limit is around 68 minutes. Now, WhatsApp is testing a new limit of up to 60 hours.
Avatars for video calls
WhatsApp will soon introduce custom avatars for users during video calls to safeguard their privacy and provide more opportunities for self-expression.