It is, however, possible to make a Will in contemplation of marriage – of a specific marriage or of marriage generally. Such a Will would still be valid after a subsequent marriage.
While it may not be a high priority while going through a separation or divorce, it is critical that this change your Will.The period of separation before a divorce a critical time to ensure your Will is updated. If you separate and then die before updating your Will, your spouse will still inherit any property you gifted to them under your Will. Likewise, if you have named your spouse as the executor of your Will, that appointment still stands. You will need to make a new Will.