Just try to calm down. Things are going to work out, if they need those forms again it's really not a big deal. Did you read that operational bulletin?
Visa Offices
Should the visa office be informed of the PA’s death during the processing of the application for permanent residence, the visa officer may replace the PA with the individual identified on the application as the accompanying spouse or common-law partner, as long as they are also eligible to be sponsored as a member of the Family Class by the sponsor. Visa officers will request an updated sponsorship application and IMM 0008; however, there would be no additional fees. Additionally, the lock-in date for age of dependent children does not change. It remains the date on which the complete sponsorship application and associated fees were originally received at CPC-M.
Have you sent the VO a politely worded inquiry as to what is going to happen?