Excluded from absolute community of property

Dear PAO,

My mom and dad got married in 2000, but unfortunately, my mom died in 2020. Recently, my dad talked to me and to my siblings, asking for our blessing because he wants to re-marry. I have no issue if he marries again. My only reservation is its possible effect on the properties obtained by my dad and my deceased mother during their marriage. I want to know whether those properties would form part of the community property of my dad and his future wife in case they marry each other.