Granted, all of these are just tests, so we may not see them become public features anytime soon - if ever.
The "regram" button begin tested.
Instagram is working on several potentially huge new features.
Until now, Instagram hasn't allowed users to do anything with popular image posts other than "like" them, comment on them, or message them privately to friends, but a "regram" button will allow posts that haven't been vetted or fact-checked to spread like wildfire among happily regramming users.
In September, Instagram also appeared to be testing a feature that allows users to save their Stories, instead of losing them after 24 hours. Instragram's native option should provide a smoother and safer experience. We don't have a lot of information about this - other than the test version being ugly - but it seems Instagram is tapping Giphy, like you do, to source GIFs in-app. "We think this helps guard against fake news and mindless scrambles for friends or unworthy distractions". With the all the news, there's still no sign Instagram support for iPad.
GIFs: The GIF feature would lets users search for and place GIFs in their stories and posts, sourcing the GIF's via Giphy. You can also use special apps for Android.
Another new feature on the horizon, fingers crossed, is one that allows you to save your Stories in a personal archive.
Favorite-friends: Earlier in the year, Instagram reportedly tested a favorite-friends which allows you to share content with a select group of friends.
Its not yet clear if or when these features will actually be incorporated in the app. For what would you share with another user on his page, click on the picture with two arrows under the selected post.
To use the new feature, you must receive a photo via a direct message from a friend.
Other notable unreleased features that may be implemented on Instagram include: archiving stories, closest friends lists, share to WhatsApp, top emoji and hashtag lists; and many more.
If they accept, you will be added into the live stream within seconds, with a split screen showing both you and your friend.