First of all, Bitcoin is not an altcoin. Secondly, I think that at the end it will be great again. Because there will always be the people who have faith and trust in it.
I believed you misunderstand the OP statement because he was asking question about the altcoin that have capacity to be the new crypto king after the crash of Bitcoin which the OP predicted will happened. However, i believed such crash situation won't happened to Bitcoin.
Bitcoin will have its time again, I believe crypto isn't that widely used as of now that it still has room for many developments and chance to increase again, it will just take time.