the altcoin will still exist in 2019 especially the altcoin with a strong team and community, and they can compete with the new coin from the telegram, facebook, and others. we can see that they are only following the booming of the cryptocurrency without researching why they need to create their token and what benefits that they can give to the people. and if they create the coin because of following the trend, then I think that they will no longer exist and they will waste their time only.