Considering this quote from Steve Jobs...
'I think if you do something and it turns out pretty good, then you should go do something else wonderful, not dwell on it for too long. Just figure out what's next'
...I wonder what Apple needs to do to replace/upgrade iTunes.
If music sales are declining, and they're close to entering the television market, maybe they need a leapfrog product to replace iTunes.
Stream music, watch TV shows and films, as well as the ability to purchase and manage content on any device from any device.
Everyone says iTunes is bloated... maybe a complete rewrite (akin to Photos replace iPhoto) will ensure the program is lightweight and efficient?
I think Apple is more intelligent than we give them credit for. Everyone grumbles about iCloud but Apple are slowly reworking it: iCloud Drive replaces Documents in the Cloud, Photos is set to replace Photostream. What's next?