The two part OVA aired yesterday. It was really nice.
Basically the class gets split up into two groups for a "Save the civilian from a disaster" type assignment. The group we follow contains Izuku, Ochako, Iida, Bakugo, Todoroki, Tokoyami, Tsuyu, Kaminari, Kirishima and Momo.
There's nothing ground breaking or anything relevant to the main plot of the series. But it was really fun to watch.
We get lots of nice character interactions, plenty of good use of quirks outside of combat and tons of shipping stuff if you're into that.
I for one really enjoyed the chill bros dynamic between Todoroki and Tokoyami, and I want to see more of that.
There's a ton of cute Izuku/Ochako moments in the first part. Even a wonderful bit where they're just floating and looking into each others' eyes. It's great.
So yeah, good stuff. It's nothing major, but it's enjoyable new content for the series. Though I am rather curious how the assignment went for the other team since they're lacking most of the main leadership figures in the class and have very different power sets.