Binance coin bnb will surely increase, the hack does not really affect the price of bnb just a little bit, and due to bitcoin recent upward movements lots of altcoins are decreasing it's not only bnb
The hack really does have big effect on the price of bnb, and it will still continue for a while because you don't just expect people to overlook the reality of the platform or project that is backing the coin was vulnerable to a hack that led to such a huge amount being carted away.