Citigroup alongside CoinMetrics released a 108-page report on their thoughts on Bitcoin and cryptocurrency entering the mainstream.
A noteworthy anecdote from the report:
The philosopher Schopenhauer once remarked that “All truth passes through three stages. First it is ridiculed. Second it is violently opposed. Third it is accepted as being self-evident.” Though this sentiment was expressed more than 150 years before the emergence of Bitcoin, the introduction and evolution of the cryptocurrency illustrates this very human response to change.
You can download the full report here: https://www.citivelocity.com/citigps/bitcoin/