That would that mean for us? Would that mean the SEC would also have the power to decide which coins or tokens to list in a SEC registered exchange?
I reckon that the government's agenda of over-regulating the cryptospace might discourage the people from investing, and that could result in slower adoption or none at all.
This is already happening. Exchanges can not let users trade crypto securities, otherwise they will face issues from the SEC.
Example
Bittrex actually unlisted trading of the BitShares token because their lawyers fear it is a security. The BitShares foundation has now hired a well known legal counsel for two important documents, a professional legal opinion that it is not a security and also for them to reach out the SEC for a "non action letter." These just may become the documents required for exchanges to list a coin going forward. This is probably a good thing, to weed out the nonsense blockchains!
https://steemit.com/bitshares/@bitshares.fdn/report-spokesperson-bitshares-blockchain-foundation-on-bittrex-inc-and-other-regulatory-issuesOn the other hand this paves way for decentralized exchanges with gateways supporting the in/out markets. 2018 is shaping up to twist around the current environment.
I reckon there are other nonsense blockchains listed in Bittrex to be worried about more than Bitshares. At least Dan Larimer and his development team were experimenting on new consensus algorithms by coming up with something called Delegated Proof of Stake.
The projects of today are not even trying to innovate anymore.