'Eventual' and its cognates are classic 'false friends' for speakers of English who are learning other European languages and for speakers of other European languages who are learning English. Unlike in German and other languages ( where the word means 'potential') the English use of 'eventually' means 'finally' or 'in the end'. If we say "Eventually they won the war", it means that they won the war in the end, after losing many battles. Or if you were lost in the forest, trying one path after another and then finally finding the right path, you might say "After three hours lost in the forest, they eventually found their way out.".

To add a cultural note: in the history of advertising in the U.S., there was a famous advertising slogan, "Eventually--Why Not Now?" It was an ad for a brand of flour. The slogan meant that the flour was so much better than others that it was certain that sooner or later you would start using it, and never use anything else. You would use it "Eventually," so why not just save time and start using it right now? http://tinyurl.com/y9bmwv2k