I can't know but I do think they drop the zeros from the bank account balances internally. They drop the zeros from the prices internally. They drop the zeros from the salaries internally. I think that is why they have to educate the people that they would be exchanging a 25k note for a new 25 note but still having more buying power.
Right now a 25k note has the buying power of $20. After a reval, the 25k would become a 25 note with the buying power of $25 inside Iraq. Outside the country the 25k would become $25,000. The people inside the country would benefit but not become millionaires.