Like the answer of others, my answer is yes, they can still survive. Why did I say? because until now Zcash, Dash, Xmr, and Beam still exist; these are just a few of the privacy coins that I know that, until now, you can still see them listed in the top exchanges in the crypto market.
Even among the less well-known exchange dex or cex platforms, the others here are also listed, meaning how many years they have been in this field of crypto business, they have somehow evolved.