Some of the alts will not only survive but also have the potential to give good competition to the pioneer, Bitcoin.
Ethereum, Litecoin, Monero; by current statistics, have a great future due to their successful projects behind them. Also, since their origin, have been incorporated by many financial institutions and have shown great acceleration in their market capital. The coins also have one of the best development teams behind them and also exceptional blockchain, allowing transactions through these coins to be secure and fast.
These are great coins and will surely survive the dip.