Psi (reality)

Basically, psi abilities are learnable advantages (though it's easier if you have an appropriate Talent), and have begun spreading throughout the wold, via both universities and 'secret' societies like the Freemasons... and the Thule Society. Not totally certain that I've got all the Control Ratings correct, but they should be close, at least. Note that in our history, the Nazis did not fully control the Reichstag yet in 1932, and that's one thing I'm keeping the same, even if exact numbers of seats will be different. If the PCs want to involve themselves in German politics, it's certainly an option.
If Reich-5 wants to get involved, they're going to have some difficulty getting there, but sadly, it's not impossible for them. On the bright side, Hitler died in the Beer Hall Putsch in 1923 (OTL, he was just injured, but he certainly could have been killed). On the other hand, Himmler still joined, and is now party chairman, and friendly with the Thule Society