I doubt this would fly here in Canada unless, there was definitive proof that you mislead or defrauded the court over your assets. Which is the case for any and everything in Canadian law, not just marriage etc. If your ex did not disclose assets for the purpose of the proceedings then you should not expect anything other than a ruling like this.
My real fear, from a previous UK ruling (not the supreme court) is that 20 years AFTER a divorce, and 15 years AFTER a guy made all his money the ex decided she wanted some of it, and then was awarded some because she fell into hardship. THAT IS COMPLETE BULLSHIT and is not supported by traditional common law. It opens up a huge Pandora's box of going after anyone you have been in a relationship with (common law, married) if they 'strike it rich' well after you have parted ways. That is the opposite of fair and just.
The divorce is never really over.
My real fear, from a previous UK ruling (not the supreme court) is that 20 years AFTER a divorce, and 15 years AFTER a guy made all his money the ex decided she wanted some of it, and then was awarded some because she fell into hardship. THAT IS COMPLETE BULLSHIT and is not supported by traditional common law. It opens up a huge Pandora's box of going after anyone you have been in a relationship with (common law, married) if they 'strike it rich' well after you have parted ways. That is the opposite of fair and just.