From the perspective of a passionate user of Ember, jQuery is still relevant. The DOM API may be more consistent between browsers today than it was in 2006, but it is still needlessly verbose:
document.getElementById(id)
vs.
$('#' + id)
Let's not forget the lack of chainability in DOM element method calls:
el = document.getElementById(id)
el.method1()
el.method2()
vs.
$('#' + id).method1().method2()
Yes--to me at least--conciseness and elegance matter, now more than ever. A better DOM API does not mean the end of jQuery. In a similar vein, ES6 does not spell the end for CoffeeScript.