If you have a sizeable estate, the asset you place in a CRT may only be a small percentage of your assets, so your children may be well taken care of. However, if you are concerned about replacing the value of this asset for your children, there is an easy way to do so.
You can take the income tax savings, and part of the income you receive from the charitable remainder trust, and fund an irrevocable life insurance trust. The trustee of the insurance trust can then purchase enough life insurance to replace the full value of the asset for your children or other beneficiaries.