I know no one can read the future but just by opinion, when do you believe the growth period for alt coins will start again?
What do you mean coins, those that have been on the market for a long time. Bitcoin, a monero of this type. Soon, the top they have already won, it remains to just maintain their effectiveness, due to demand you can feel perfect.
I believe that the growth of altcoins depend mostly on the growth of bitcoin as this is what usually is happening in the crypto market. If bitcoin had bounce to a great increase then surely the effect would also be great for the altcoins. In my opinion, altcoins is directly correlated with bitcoin and I would say that this may be the start of the desired expected rise of the alts. Potential profit will soon be experience by the majority who had invested on alts and btc.