I don't like it and I think all traders and investors will not like this idea, it's an open market we do not want manipulation and control, it's all about the principle of buying low and selling high, it's never been done before and I don't think it's going to happen soon.
It will absolutely even be impossible, the technology was created to provide an anonymous transactions, so if they introduce that, then it automatically turns it to the same way our traditional market works which makes no sense to have a duplicate system, it would have also been better then in that case for traditional banks to incorporate blockchain technology while they still have control over it, although if it was done the way OP suggested, it would make the objective of blockchain tech as a payment system quickly come to pass, unlike what everyone of us is using them for now.