There are many experts who still believe that altcoins will return. But in fact it is not possible. Perhaps in the long run some altcoins will be removed from the market because it cannot grow on its own depending on BTC to survive. The top altcoins may have already taken measures to face this challenge, try to store a lot of them for the time being and hope they come back.
In this bear market, it will be very hard for anyone want to invest their money in this really bad situation, because we can not predict when will they price stop falling for us to start investing, so investing in altcoins is very risky task that not anyone want to deal woth it. Therefor, my opinion is waiting until the marktwet srart recovering from the big losses because we can easily know wth will survice for a very long time.