http://blog.jpegmini.com/5-reasons-why-bpg-will-eventually-replace-jpeg/

This is a link to JPEGmini article written by Dror Gill. How about BPG in Krita? BPG os OpenSource and might have a bright future..?! The online demo http://xooyoozoo.github.io/yolo-octo-bugfixes/ makes all the explanations why BPG is far better than JPEG.

Well, someone will have to do the coding... And we haven't even managed to support webp yet