The U.S never banned crypto. Binance had to block US residents from accessing their site because they didn't have any license to operate there.
This is the truth mates, U.S. can't ban the cryptocurrency it could've the use of it but it's not. Binance know their limits as well as the country boundaries and so they did not operate in U.S. however, I've seen some people who are from U.S. that uses some kind of VPN or IP hider to still use the binance. And speaking with the expected price increase. I am not expecting that much since there are already exchanges before binance gets legal, people could jump from one to another or just ignore if they're happy with their existing exchange.
I think the same way. When the US allowed bitcoin trading, there was no major change.
The release for Binance only shows us one more step in the regulation of cryptocoins in the USA.
Just one more method of control for them, which is still good, as it partly prevents money laundering, as laundering is not good for the bitcoin image.