What chance is there of a TLD raising prices significantly?

Question

I am looking to purchase some .yoga tld domains, and I am nervous about building a business on a domain tld that has dynamic pricing.Most every .yoga domain on namesilo costs $23.99 USD/year... but some of them like natural.yoga cost $5,000+/yearIs there anything in the ICANN contract preventing whoever owns the .yoga tld from saying "hey I think I want to increase flyGuyOnTheSly.yoga from $23.99/year to $10,000/year renewal fee because that is a popular domain"???Essentially rent seeking on my hard work that made a "worthless domain" in their eyes "now popular"?Thank you

nicksantamaria · Accepted Answer

I asked donuts (gTLD owner of .family) whether my domain renewal could be reduced (from $385 per year to something more reasonable for a genealogy hobby). This was their response.
Maybe it’s not worth reading too much into the “we can’t change the renewal cost” line.
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Hi Nick,
Unfortunately, we can't change the renewal cost for santamaria.family
If we ever start to change renewals, I will be sure to reach out to help.
Sorry about that.
[redacted]
Domain Consultant, Donuts Inc.