There's nothing happening with gambling projects if crypto will be regulated. Im sure that the regulation will be putting its focus into the taxation for crypto users and AML. The gambling platform just need to follow what will be did by regulators. It's quite easy to follow the regulation.
I think this will not become a serious problem for the platforms that are also supporting the crypto.
at some countries that gambling platform suspend especially from muslim countries , of course it will be serious problem , by regulation their position become more weaker. government and another stake holder that rellated with gambling statue will directly cut all access to this site. but for countries that allowed gambling platform , by this regulation they will parallely adopt bitcoin and also have legal standing.