It is important to remember when doing estate planning that the will only controls property that passes from a decedents sole name and a trust only passes property which is funded in the trust. Property that is intended to provide an inheritance for other beneficiaries may go to the wrong individuals unless a person keeps the beneficiary designations and transfer on death recipients updated.
Unlike provisions to a former spouse in a Florida will which are automatically voided by the divorce (effect of Subsequent marriage, birth, adoption or dissolution of marriage statute click here) and provisions in a Florida trust to a former spouse are voided on divorce (for the Florida statute click here) unless an intent to the contrary is explicitly stated beneficiary designations and transfer on death accounts will often be fixed at whatever they say. There is no express statute which voids them. Therefore if someone has a million dollar life insurance policy naming an ex spouse they have not talked to in 10 years or a bank account or some other account that is setup as being in trust for that person it is important those be updated or the inheritance plans may not match what your desires would actually be.
The positive aspect of avoiding probate would clearly be wasted by potentially having none of the property passing to the desired beneficiaries. While it is important to keep a will and trust up to date it can be even more important to keep property that will pass outside of the estate or a trust passing to the desired individual.