This article says that streaming is now 51% of music sales and the dollar amount of sales is up by a billion dollars.
They also suggest that CDs are done for good. But there are other indicators that they are starting to come back. Bandcamp which sells downloads, CDs and vinyl saw amazing growth in 2016.
Ontario based Sunrise Records is taking over 70 HMV Canada locations that were in receivership. They are planning to sell physical products like CDs, vinyl and board games. No successful company would do this is they didn't see growth potential in it.