2020 will be a good year for cryptocurrencies but i don't think it is that because of what you said.
i believe that very soon the altcoin market will blow up and all the crap coins will be flushed down the toilet where they came from. only good projects will survive the upcoming flush and the bear market where everyone is going to dump and dump hard.
in near future, hopefully, the projects will change purpose from useless pump and dumps that you see today to some real cryptocurrencies to be used in real life.
By that time, I think that crypto would have gone far already. Many changes would have happen and crypto would be used in day to day transaction or business of people, whether it's for work or personal.
probably so because there are many people who invest in Bitcoin and altcoin because now many people are investing in Altcoin to help pump Altcoin prices back stable and I am sure in the year 2020 later cryptocurrency will be good and profitable