Just spoke with several financial experts with backgrounds in the banking sector. They told me once Japan opens itself up to the Bitcoin the currency is very likely to reach the 30.000 USD mark before 2020 since
Japan has been known to be a trendsetter and have high influence on the EU and US markets.
Even though bitcoin have its good trend in the market but I don't think $30k are achievable in 2020.
I'm also an optimistic person but it gonna be far,$15-20 maybe.
no matter how much bitcoin price as long as we can be able collect more bitcoin and the price is up to $4k then I think its enough for me. but for that price, I think it is difficult, we need to break price barrier for each of level. if there are more country join bitcoin and approve bitcoin as a legal, then maybe we can see $10k-$15k.