We are still considering this feature for future releases, and will continue to update the status when it changes.
~AlexMartin Fletcher commented
I need some of the archiving feature. I use Teams for Education and we have been using Assignments to issue formal assignments that form the assessment strategy of the exam board. The assignment evidence needs keeping for two years and short of printing each document that is produced, defeating the purpose of online submissions, I cannot see any practical way of retaining the required evidence.
Thanks for following our suggestion to vote this up on SharePoint. It worked! SharePoint has confirmed that they have already started working on this and I’ll be getting an ETA from them after the holidays. -Suphatra
Due to prioritization of other work-items this has been moved to the backlog. We will update when it is being actively worked on again.
Performance has been and continues to be a big focus area for Teams. One main area we have made improvements in is responsiveness for the most frequent user actions of switching between Chat, Channel, and Activity. We are also focused on reducing resource consumption and application load time. More improvements are on the way.