It would be good to be able to view or have some asset management features such as in frontify. I think integrations with OneDrive, googleDrive and Dropbox might be good.
There is a wordpress plugin which is handy https://www.wpcloudplugins.com/licenses/. It would be good to be able to apply some of these features along with some integrations with Upsplash and shutterstock where you can apply filters to guide designers, marketing etc to image assets or even design templates. This might also be easier to upload a few designs automatically instead of manually.