An Altcoin which has regular update and development plan and which team are very passionate with their works and aim, those altcoins will survive! If you ask me to tell their names then the list will be very long! But I can mention a couple of good altcoins name which is trending most right now. The altcoins which will survive they are ETH, LTC, ADA, NEO, XLM, ZIL, ONT, BAT, ICX, AION, WAVES, BNB, PIVX, XMR VEIL and so on.
You may ask why I pick VEIL in this list, yes it is a new coin but still, it has a strong team and its CEO is a very hard working man who believes in works, not in words! Therefore VEIL is upgrading every month and everything seem very perfect.