Yes, I believe that the most promising altcoins like Ethereum, Ripple and Neo are going to recover their value soon, as the crypto market is nowadays going on, and the prices will be much higher in the near future most likely.
There is also some tokens which have the potential to reach good levels in the future.
yes, some potential altcoins will definitely restore their value. but not all altcoins will be able to recover their value even after facing a sharp drop in market prices this year, many altcoins have lost their value so that they can be left behind by many who have invested in them.