Does my late mother's will need to be probated if their is a 45m$ lawsuit looming possible in the future?

O.K., my mom had law suit against a major drug co.started before she died from cancer at 58 years old .The cancer was caused from a hormone replacement drug that she took for 26 years.Her lawyers are still working on the case and had a deposition with her and the drug co. about a month before she died. Their are three heirs in wich my mother stated in her will(that was notarized in the state of Texas) that would recieve her estate :Me and my 2 brothers to share and share alike. Also, anyone that attest should recieve $1. Anyway,the court still hasn't appointed my oldest brother, who is the benefactor, as the head of the estate.My mom's attorneys said they would handle this, but they're kinda hazy on the whole deal. Can anyone screw use out of the money when the settlement comes through with the will not being probated? Also my uncle keeps popping his nose into the lawyers office, I ume gold digging, is there anything to worry about here?The lawyers have a copy of the will.