Although it would seem that some of are still enjoying new music there doesn't seem to be any consensus as to who today's best music acts might be.
If you look at the covers of today's bighest music magazines (Mojo, Uncut, Rolling Stone etc) you are still more likely to the likes of Springsteen, Young, U2, Zeppelin, Dylan, Madonna, Hendrix, Beatles etc.
If you read the music section of audio magazines then you are likely to find more interesting articles on reissues of classic albums than any new groundbreaking current release.
As @frankmc195 said earlier, 1980 seemed to be a key year when it came to a slowing down in musical development.
By the end of 1980 we had seen more or less every significant musical genre as well as the murder of John Lennon just after his return to recording.
I don't think any of us are in any serious danger of getting jaded in our tastes. Most of us here seem to be finding plenty of 'new' music to enjoy.
New to us, that is.
Until some current artist (other than Roger Waters, Eric Clapton or Morrissey etc) is willing to stick their head above the parapet and speak up as to what is happening in the world today, then their music can hardly be called current.
Given the enormous social changes we've all been witness to these last 20 years or so I think it's fairly safe to say most of the music produced in that in that time has little more than ephemeral value.
Here today, gone tomorrow.