I think in the web today there's a demand for an image format that supports both lossy compression and alpha transparency and one that supports high colour depths. These have pretty obvious benefits in regards to graphically intensive web sites/web apps and games. This is the exact reason that adobe flash player now supports Jpeg-XR. I think there's a big opportunity for Jpeg-XR to be the format to fill this need for web developers. Web-P is being developed by google to support these features too, but at the moment that's a moving standard and is by no means complete. Jpeg-XR has an enormous benefit then by being an established ISO standard for 3 years now I think. So far though however, the only browser that supports Jpeg-XR is IE9. Why is this the case exactly? Mozilla seem pretty interested in the standard but among other things they are mostly put off by the huge amount of work it would take them to write a performant, stable and secure Jpeg-XR decoder from scratch.
"I'm interested, but there's a lot of work that would need to be done.[...] If Microsoft is looking to help, I think releasing a high quality encoder/decoder under the same license as libjpeg would go along ways to improving adoption." -Jeff Muizelaar, Mozilla
Microsoft do have an open source reference codec, but it's not performant or secured. Why then should Microsoft not take the lead (supposing they are interested) and release a performant, stable and secure Jpeg-XR codec of their own with a liberal (GPL Compatible) open source licence? If Microsoft is interested in getting the format more broadly adopted, especially in the web, then what better way then to do this? No new code would even need to be written, they could just open source the codec included with WIC.
My thoughts are that if this format became broadly supported in web browsers it could make a significant improvement to the kinds of things possible in web development. Most people seem to agree the format is the right one for the job, and it seems like it could become broadly adopted if Microsoft made just that much easier for people to implement.
I'm not sure how interested Microsoft is in promoting Jpeg-XR however. Seems like all the momentum behind it died the day they made the licencing free permanently and killed any means of making any real money off of it. Perhaps I'm wrong though and there's some people left in there who want to see this format adopted in more places. I'd love to hear someone from microsoft's two cents on this and whether or not this is a practical possibility.