2008: Concept phase
2009: Launch
2010: Experimenting
2011: Started to grow
2012: Acknowledged by the world, promotion
2013: Acceptance by small companies, turbulence, politics, super hype, venture investment boom
2014: Crash, hacking of exchanges, acceptance by large companies, venture investment boom v.2.0
2015: Price recovery, merchant acceptance boom, acceptance by some governments
2016: World wide acceptance, network expanding and huge rise in mining power, ATM boom, scaling war & Bitcoin politics
2017: Cryptocurrencies boom full spectrum, Japan accepting Bitcoin as legal way of money, other important acceptance, (scaling compromise and solution, potential forking turbulence)
2018: Serious cryptocurrencies development and altcoins finding their purpose, large network scaling, big fresh investors, price boom v.2.0
2019: Serious push for mainstream adoption in some countries, mixture of cryptocurrencies and interoperability
2020: Some Bitcoin and banking (FIAT) systems cooperation (banking long-term survival plan), serious world wide regulation and legalization attempt, Bitcoin banks (for legally lending Bitcoins for interest)
I'm not sure whether the 2020 prediction is going to be accurate. Because honestly bitcoin does not go well with the fiat currencies at all. If anything, they are the complete opposite. Banks might like the idea of having immutable ledgers but they will create their own and not use bitcoin because they want to retain control.
Though mainstream adoption/legalization is happening right now and i can only see it expanding even more as a trend in the future. Honestly though this should have happened a long time ago. Governments are only realizing now that bitcoin is really a legitimate currency, and not just some magic ponzi scheme.
Also, another thing. I expect BTC to massively outperform altcoins in the coming years.
I were wrong, it's not happening in three years. It's happening now! This is exactly what I meant:
http://www.coindesk.com/swiss-bank-launches-bitcoin-asset-management-service/