Once more about the orthodox German noble. Karl of Hohenzollern-Siegmaringen became Carol of Romania, a foreign prince brought to the throne, who accepted the religion as soon as he stepped foot on Romanian soil. My point is, it's not only feasible, it's been done IRL. His brother, Ferdinand succeeded him, also becoming orthodox and his descendants (Carol II and his son, Mihai I) were (and Mihai still is) orthodox.
I personally like the idea of a German Czar (let's just remember that Ekaterina the Great was a German noblewoman before she was the Czarina).
/end rant
As for ideas... I was surprised by a recent game, where Long won the elections and... nothing happened. So Reed contests a "federalist", but just rolls over for his "nemesis"? I didn't get to 1940 yet to see what would happen then, but I just think it would piss some syndies off to have Long in the White House.
By extension, I guess if Reed manages to win, Long would have a fit as well. Maybe still have the second American Civil War even in these, more unlikely situations (and if they're scripted for later, my question would be "why postpone it?")
Edit: In another game, the Carlist Faction won the elections in Spain and the result was the liberation of Carlist Spain, having the provinces it normally rebells with. The rest of the country went on with business as usual, no more events firing for either country. I think that particular event chain needs some work on it. (For example: they win, another event to have the elections recognized, another one in which the Carlists could press for the king's abdication in favor of the Carlist pretender, depending on the answer, Carlist Spain could gain either all of Spain or rebel and have the usual civil war. Also, if Carlist Spain were to get the whole country, the CNT-FAI could still rebel.) If there are events covering this, sorry, but they didn't fire.
2nd idea: Same game. Playing Germany and kicking serious ass (syndies are gone in Europe). Gave Southern Italy back, Gave France to the Nat. French in exchange for alliance, conquered Britain planning to give it to the Canadians and... I couldn't. I'll probably start a war with the Entente, puppet them and then give them the provinces, but I'd have liked to be able to do it at the "Partitioning of Britain" event.