If Hitler had waited to perfect jet technology, etc before starting WWII how would that have changed things?

If Hitler would have waited 4 years before invading Poland how big of a game changer would that have been? If he had waited to perfect the jet (everyone else seem to not take the jet that seriously), gotten missile technology better, and had more time to develop The Bomb 1st, would he still have lost? Maybe won, and if so how much of the world would he ultimately have ruled? Would it have ended up a stalemate in the long run? If Japan still attacked Pearl Harbor and he had given technology to the Japanese like jet fighters how would that have impacted the Pacific campaign? And if Japan survived intact what would Hitler do with them since he did not seem to want to share power?