I am expecting that bitcoin's price will be $100k by the end of 2020. There are a few factors which I concerned before predicting the prices. There are approx 32 million bitcoin addresses have more than 0.001BTC in their wallets, this number going to increase by 2020. Reports say active bitcoin users in 2020 will be more 150 million which include people and all other firms and business.
For hitting price of $100k market cap. need to be near about $1.8 trillion for 18million BTC in 2020. which I don't think any impossible for bitcoin. Look at past 6 or 7 years graph, the average of the percentage gained at price after each dip to arrive at 2020.

There are many popular bitcoin evangelists, who had predicted growth x100 times to current prices.

$500,000 by 2020 says, John McAfee

He recently founded MGT Capital, a company that mines various cryptocurrencies in and outside the United States. John got involved with Bitcoin because according to him it will eventually become ‘the standard for the world.’
McAfee recently made waves in the cryptocurrency world after claiming that each unit of Bitcoin would be worth half a million dollars by 2020. He did not stop there. He went on to predict that Bitcoin could even reach as much as $2.6 million in the same time frame. There is no way of knowing whether McAfee did this to get attention or if he actually means it. Only time will tell.

$60,000 by 2019, Tai Lopez

Tai Lopez, a renowned investor and analyst, believes that if a small portion of the assets of millionaires globally is invested into Bitcoin in the upcoming months, the price of Bitcoin would justifiably be around $60,000.
Given that the adoption of Bitcoin as a store of value and a medium of exchange within the global finance market is increasing exponentially, $60,000 remains as a viable price target.

$40,000 to $110,000 by 2019, Master Luc

Master Luc is an anonymous Bitcoin trader, known for his impressive predictions in the price of Bitcoin.
Master Luc sees Bitcoin reaching a price of between 40,000 and 110,000 US dollars by the end of this bull run, sharing his thoughts publicly on the TradingView platform, the legendary trader said he expects the price to be reached sometime before 2019.

$50,000 by 2020, Ronnie Moas

Ronnie Moas is the founder of Standpoint Research, an equity research firm accounting for both traditional investments and new-time ones. According to Moas Bitcoin will reach a price of $50,000 by late 2020. He also believes that the market cap of all cryptocurrencies will reach up to a whopping $2.5 to $3 trillion as of the current $250 billion within the next 10 years.

$50,000 by end of 2018, Ran Neuner

Ran Neuner, the host of CNBC’s show Cryptotrader and the 28th most influential Blockchain insider according to Richtopia, claims that Bitcoin price at the end of 2018 will be near around $50,000. A step-by-step tutorial on how to buy Ripple from Poloniex exchange broadcasted by the channel. The number of cryptocurrency related news had dramatically increased on CNBC after that.

$50,000 by 2018 says, Thomas Glucksmann

Thomas Glucksmann, head of APAC business at Gatecoin, sees regulation, the introduction of institutional capital, and technological advances like the Lightning Network as the main factors in rising cryptocurrency prices.
There is no reason why we couldn’t see bitcoin pushing $50,000 by December. he said.

I think there no need explain about the potential of bitcoin, but before taking action make your own analysis.

This is my prediction so just invest as per your risk appetite and enjoy!!!