Now the rates of cryptocurrency falls. May be the price for the listing will falls too.
The price of listing in cryptocurrency will remain the same. But in dollar terms, of course it will be less
Why do you think so? The exchanges run on real servers, real energy, pay ordinary money to the staff. They need ordinary money to run a business, since crypto is not yet universal.
The price of cryptocurrency decreased. Why do the exchanges still lower the price of the listing? It is absolutely not profitable for them.