Real investors aren't using Exchanges to invest. They use a bank/company/services to invest via. GrayScale is one of the companies that invest behind their clients (institutions, funds management, etc) It has actually 7 or 8 cryptos in their investments (Bitcoin, Ripple, Horizen, Bcash...)
Neither they will use a DEX, because everything is out of its legal banking jurisdiction it has to abide
Yeah, probably a good indication as well that investors are swelling without us knowing the real statistics behind. And there are probably hundreds of investors going through hedge fund managers to purchased and invest bitcoin on their behalf.
Many of these new exchanges will become zombie platforms and will end up closing doors in coming months. Although the number of exchanges users increases significantly, new users will go to populated platforms where they can find more coins and volume.
They can be dead if they don't give us the services traders wanted, (low fee, good customer service, better platform, etc). This is business is very tough, is a dog eat dog world.
New exchanges mean competition which in turn means less fees and better services. But it will not mean more investment or institutional investment since there is absolutely no control or regulation. All trading platforms are subject to hacking and nobody can guarantee they wont decide to run with your money over night so investors remain sceptical.
This is what I'm trying to say, exchanges need to be in top form otherwise they will lose traders if they perform badly. Specially security, everyone is really going on a exchange which is secure and has history of 0 hacks or at least was able to nuetralized those attempts and very transparent to their customers.