Getting back to the OP - good question. IMO, jazz ended in the late 60s and all any "jazz" artist can do is to replay what has already been created. Before anyone kneejerks to say how ridiculous this is, keep in mind that many forms of music have ended. Homophonic music ended, Baroque ended, Classical ended, Romantic ended, Punk ended... Jazz ended. So what? There are still musicians performing classical, romantic, punk, disco, jazz, etc. If you like the music, listen to it. Sounds simple, but it seems to generate a lot of arguments.