Yes it will probably be like gold in digital form but I'm not sure it will happen because bitcoin is decentral and bitcoin holders will not get much profit, I like the fluctuating bitcoin
The fluctuation is good for traders who sell and purchase the bitcoin looking at the prices. But for those the rise and down is a bit discouraging who want to save it for a long term. Like people having future plans of 2020. They will want the persistent increase in the prices. These are the people who are valuing the bitcoin as the digital gold.
It's good for traders yeah, but it's bad for the users...
Fluctuations make it popular among people who wants to trade with high volatility but that's all.
It makes it unatrative for investors and it makes it very difficult to use :/