Lightroom :: Rename Images While Exporting?

n Lightroom, I want to rename my images, based upon the image name and its mapping in a CSV file. Ideally, I would want something like this:
 
When the user after editing goes to Export under File menu. Inside the File Naming panel above, one should be able to input the CSV file containing the mapping. Hence once exported, the new Images will be named consistently with what I need rather than the default ones provided by LightRoom.Using the plugin LRTransporter one can do it while Importing images (storing the new name under Caption and then renaming all using Batch Rename). But it is tedious. What I need to know is that, can we build such plugin which can do it? If yes I would move ahead with constructing it.