If the Skull won WWII for Germany, within 5 years English was going to be a dead language. Johann was giving English one last harrah, but that has to suck, the Skull spent a year or two of his life learning English, and all that time, his fricking youth is now wasted and filed away into deep storage never to be opened again.
Speaking English after complete German Victory would eventually be punishable by death, and all books written in English would have been burnt. Dead is dead. In a hundred years there'd be no one on Earth but German speaking Germans becuase it would have gotten to the point that the planet had been renamed Germany.
Above are my beliefs if Marvel's cartoony Third Reich won the war. In the real world the NAZI's would have just finished exterminating the undesirables, hung a flag every where and then left everyone else "relatively" alone as long as they hit their production targets and paid their taxes honouring the war reparations paying for the German War Effort and global occupation retroactively adjusted for inflation, plus interest.
Berlin was also on The Red Skull map of targets, he'd of won the war for Hydra not Germany and take over Germany as well.
Although that really would have been more of a coup d'etat replacing the Nazi Party with Hydra, than anything else. The German Reich still would have been the German Reich, just under Hydra rule with a different fuhrer.
It wouldn't have been the Geman Reich than the United States would've continued without Ellis and the White House. The idea as Zola explained was to remove the governents and make thet people turn to Hydra for leadership. Hydra in the one wants a one world government under their rule.