Hey @prism1c,
This is a feature that we discuss a lot at Prismic. There's a feature request thread for it, here:
You can add a 
to that post to show your support for the idea.
I can't offer any timeline for when we might implement something like this.
If you need another option, I have heard of users who create a custom API integration with Integration Fields, as I described here:
You could use any image hosting provider you want, like Imgix or Cloudinary, and write an API integration to send your images to a Prismic Integration Field. Then the content editors would select images from the Integration Field, rather than from the Image library.
That would allow you to manage your images in Cloudinary. However, you will still have to select the Images in the Integration Fields interface, which is more limited than the Media Library interface. It might not be the kind of improvement you're hoping for, but it's the only alternative I can easily imagine.
Let me know if you have any questions.
Sam