"After the departure of Kent, there will be probate, transfer of business to heirs, or even outright sale of business to new owners and in any case a new management."
I have no doubt that contingency plans are in place. Also you are making assumptions about business ownership which may not be true. This is a very speculative post.
"US cryo industry is unhealthily addicted to LEF money and will have severe withdrawal problems."
I am sure that nothing would please them more than to find other benefactors to take up the slack. Unfortunately, some Alcor members who are much wealthier have shown very little interest in contributing. When one wealthy family made an annual bequest, I figured out that if I took into account the ratio of their net worth to mine, it would be equivalent to me giving less than $10 per year.