Some altcoins have grown well by the New Year. Look at the Waves project, doubled in December. It seems to me that 2020 is waiting for us in which altcoins will dominate the market, I really want it to be so 
Until now, bitcoin is dominating the market with 68.5% and it will certainly increase in 2020 if halving helps BTC to increase prices. I do not see any future for altcoin, certainly the price of altcoin will be in crisis and continuously going down in 2020. Do not invest in altcoins at this time because in 2020 altcoins will create a new bottom