Please just let XML die. Just because it existed doesn't mean it has to exist forever. Will there be pain points in getting rid of it for good? Yeah. But we'll be better off in the long run.
I don’t agree. Never touch a running system! I think you have no idea in how many software implementations XML plays an important role. Just because it’s not hot and fancy it does not mean it’s bad.
I don't care about hot and fancy. I care that XML is a usability nightmare and makes my eyes bleed. It should not be used in anything new. Part of achieving that goal is to not continue to implement and support it.