Bitcoin ETF will open doors for big investors to invest in bitcoin in secure way. This will increase huge demand and better adoption in mainstream. There are other products similar to ETF which are also in wait and watch state. So if SEC approves BTC ETF in September then that will be very turning point in crypto space. Even these products can be introduced in Europe, Canada and Asian markets. So hope for best.
as a matter of fact when you are investing in ETF it is less secure than when you are investing in bitcoin directly. because when you invest in ETF you don't buy bitcoin, you buy ETF which is basically a promise that the centralized company gives you that is equivalent of bitcoin amount. so you have to trust them. but when you buy bitcoin you buy bitcoin, you hold bitcoin and you secure it in your own wallet with the private keys that are unbreakable so no one can take them away from you and you don't need any third parties for storing and using those coins.
this also means the funds aren't coming in bitcoin, the funds are going in ETF which won't affect bitcoin price directly. the hype may get to the market and increase the price for a little while but that won't last.