The most important question is: Will most altcoins recover their previous value? in January ETH reached $1300 and had a Market Cap of $130 billion dollars, now has a Market Cap of 13 billion dollars, this is a very big fall, and with the regulations and with many cases of Scam ICO the chance to see $1300 and a Market Cap of $130 billion dollars are very small. In the case of bitcoin things are still more possible, but the altcoins can have a very bad destiny
I have heard this being brought up by many crypto investors and gurus and the prevailing thought among them was that Bitcoin is the safest store of value if you want to remain in cryptos. Nobody is going to create laws for altcoins. Nobody is going to make sure you can buy coffee with dogecoin or litecoin. All laws and all adoption will be built for Bitcoin first and if it does fine then it will be extended to altcoins.