Microsoft introduced live transcription for Teams back in March, including speaker attribution, months after the feature was first announced. However, the transcription is currently only available for scheduled meetings, with speaker attribution based on the names used when people register for the meeting ahead of time.
Now, according to the Microsoft 365 roadmap's latest updates, Teams will soon deliver live transcription in unscheduled meetings, as well as channel meetings. According to the roadmap, both unscheduled and channel meetings will add support for live transcription in July, so it's still a ways off, but it's possible that preview users will get to try it out before then.
That's not all the news coming to Teams though. Microsoft has also added Together Mode for VDI to the roadmap. Together Mode uses AI to cut out the real background of a user and places everyone in a meeting in a common virtual space, and this update should mean that users running Teams in virtualized environments should be able to leverage that capability as well. This is seemingly planned for this month. Additionally, Power Automate templates will soon be added to certain Teams templates, so you can add a Power Automate tab to a team out of the box.
Outside of Teams, the most recent updates to the Microsoft 365 roadmap also include custom result types in Microsoft Search, allowing organizations to create adaptive card templates based on SharePoint content for when users look for certain types of answers. This is only coming towards the end of the year, though.