In 2019, cryptocurrencies will be legally used in more and more countries. They will increasingly be used to transfer large amounts due to the significant (tens and hundreds of times) lower transaction costs.
Manipulators will make a profit by changing the current bear trend by bullish one. This is confirmed by the fact that significant changes in the balance of hundreds of the largest Bitcoin wallets are not observed.
Large transactions are carried out mainly from the addresses of large cryptocurrency exchanges, and rich Bitcoin holders are only increasing their assets.
Technical performance of popular cryptocurrencies, in particular, Bitcoin and Ether will be increased due to technical updates (for Bitcoin - Lightning Network with an increased speed of transactions by 10-100 times, for Ethereum - a number of updates related to scalability and speed, which will attract new investors.