One day in the future most of them will just disappear and we'll be left with a few. The truth is that no one has any idea what will crypto be like in a five years from now. Which one will survive. There is so many projects in blockchain technology because sooo many of them are totally different. We have smart contracts, payments, games, social platforms, data transfer... and many more. Each and one of them are completely different projects using the same technology. I think it’s too early for developers to start to band the top 100.