The team has not made a decision on whether to move forward with this feature. We will update when we have new status to share.
Thank you for your feedback! Our team is currently working on a significant update to add a broader and more diverse selection of emojis to Teams. We will share an update as soon as one is available.
The ability to add custom emojis and custom reactions is still under review, and we will share an update as soon as one is available.
We’re updating our command library all the time, so keep checking the menu in the command box to see what’s new by typing / or @.
Due to a priority shift this request has slipped to the backlog. I hate to bring bad news. I will continue to provide the feature team your feedback and votes.
Hopefully this will move back up in the queue soon.