According to the latest report from WaBetaInfo.
2 GB File sharing Document banner
WhatsApp increased the file sharing limit from 100MB to 2GB in May 2022, but not all users know about it. To promote the feature, WhatsApp plans to add an in-app banner in a future update.
As shown in the screenshot below, the banner will appear in the file browsing section and inform users that they can now share files up to 2GB in size. This will help raise awareness and encourage people to try out the feature.
Call shortcut
The screenshot shows that users can create a call shortcut by tapping on a contact in their list. This will automatically update their device’s home screen. This feature will save time and simplify the calling process for those who call the same person frequently and don’t want to go through the process of opening the app and finding the contact every time.
Pinned posts
WhatsApp is developing the ability to pin messages in chats and groups for a future app update. Pinning important messages will make them easier to find in conversations.
If the recipient is using an older version of WhatsApp, the app will display an upgrade message. This feature will improve organization into groups and allow users to focus on important messages by making them easily accessible.
Availablity
As for the features mentioned above, they are still in development stage, spotted on Android beta versions v2.23.3.13/15/17 and will be available in a future app update.
Moreover, WhatsApp is working on other improvements such as chat forwarding, blocking shortcut, new camera mode, etc.
Sources 1, 2, 3