There appears to be no clear path forward for crypto exchanges to legally list new crypto tokens to the public. I suspect that is the goal of the SEC and administration; to limit what is available to the public, rather than define clear policies that would enable regulated trading. The only token actually tested is XRP, which was deemed to not be a securities offering[2], and is notably absent from this new filing.
[1] https://www.sec.gov/files/litigation/complaints/2023/comp-pr...
[2] https://www.investopedia.com/crypto-exchanges-allow-xrp-trad...