It depends what the biometrics are. There have been successful hand transplants, so new finger prints are possible, but completely impractical.

https://en.wikipedia.org/wiki/Hand_transplantation

Thinking about it, I probably wouldn't remember to change my fingerprints to the new ones with all the services I use, I'd probably have to carry my "legacy fingerprints" wherever I go for some time to avoid a lockout.