I'll put this item back from "planned" to "under review". We had it planned for development at one point, but we ran into issues along the way and couldn't finish it. Mainly it means that we'll have to rework the design of a news item so it contains the teaser image automatically. Only if we do that, we can comply to the terms of Unsplash for usage of their service.
And because it's not an easy feat to decide how the image should be embedded in a news item, when most of our customers use very specific, premade news layouts, we had to halt the development until these questions are decided. We still want to implement it though, I just can't give an ETA at this point in time.