I agree with you because in my personal opinion now altcoins with real project or ecosystem will survive and will gain a high value beside that the altcoins must have a great community to survive too. 
Not only altcoins with good project behind can be survive . You should know that the whale will take advantage of all altcoin to get profit that why there are a lot of trash altcoin still survive because of this case 
. The whales often try to pump a trash coin to make other traders believe that these alts have good potential and then they'll stuck in this trap of the whales )