Your parents case is different from TS's case, like I
mentioned.. your parents are no longer a DEPENDENT of your
grandparents..but TS and family IS.
You cannot swipe your fear in a broad stroke onto TS's case.
The time lapse between the execution and claim.. priority of
beneficiaries/dependents....rights under the intestacy
act..financial needs of the contestant... and if there is a
no-contest clause... . etc etc.. all these plays very important
roles in the success rates of your parent's claim.
So, every case is unique and has it own merits and demerits.
That is why a trial judge needs to hear each and every case during
court time.
IF every asset distribution case is the same.. then no need go
lawyer liao.. just file paper application with multiple choice
questions.
Like I said.. the legal counsel will inform TS what are his
chances. So let's just hope he gets good news OK ? Good.
You are a hardcore case. 
After explaining to you in page 3-4 (with you
skillfully manuevering around all my questions)
about TS' father probably died with a will bequeathing his estate
to TS' stepbrother, you are still harping on the delusion that
"maybe" there is no will and "if" there is no will.
Also, I didn't know that the "financial needs" of the parties
involved has a basis on the speed of resolution on the part of the
judges.
Your honour, I am in dire financial consequences (ah long
chasing me for money), can you please speed up the proceedings.
