I view bonus points and preference points as an investment in future hunts, outdoor recreation, and game conservation. Hopefully, most Fish & Game Departments will allow point holders to gift, devise, or sell their points at any time or upon death by will or trust. Therefore, you could stay in the point lotteries knowing someone of your choice would get your unused points at death or otherwise.
I sure don't ever see that happening. I think that with increasing demand (travel hunting) and decreasing supply, states will be happy to let those points die with the holder. They got your money, and didn't need to issue you or your designated beneficiary a tag.