It would simplify attribute to image mapping greatly if one could use the value of the attribute as a replacement tag in the image link.
For example if I have attribute "manufacturer name" I could map hundreds of manufacturers in one go if I could set the image as "/content/files/images/manufacturers/[ManufacturerName].png" and then put "[ManufacturerName]" in alt text. I would then just need to upload logos in the right folder with the right name. And when new manufacturer is added on the ERP side I would only need to upload its image as the mapping will already work for it.