A Bank of International Settlements (BIS) report examines cryptocurrencies in depth. The study, called "Looking Beyond the Hype" investigates whether cryptocurrencies could play any role as money.
Bloomberg, Reuters, and the Bitcoin Exchange guide all have articles on the report but not one of the bothered to link to it.
After a bit of digging, I found the crypto report is part of an upcoming BIS annual report. The BIS pre-released the crypto report today (as chapter 5).
Here's a link to the page that contains a download for two Pre-Released BIS Chapters, one of them is on cryptos. I provide some snips below.