Even if it is successful, I can't imagine him having anymore power then Japan's emperor or the Pope. To assert that he is reaffirmed to the throne would require a more popular "Imperial Edict of the Abdication of the Qing Emperor" in 1912; the Republic of China, let us say, leave's the decleration as is. Beijing (The Forbbiden City) will become the permenant capital and Puyi's residence until 1937, when Japan invaded China begining the Second Sino-Japanese War. He would eventualy move to Nanjing, where he would continue to persist until negotiating the surrender of the city after demans for 'complete capulation with 24 hours or annihilation'. Not all of this, most of it probally, is historically accurate - but there is no possibility of a revived dynasty under Puyi's rule.