I doubt a few decades of time is going to make much literature so much harder to understand. Just a little bit of historical context and background on currency values is enough to read and comprehend stuff back to Shakespeare where viewers and readers can instantly recognize the human foibles in fictional characters from centuries ago. Translations are a different beast where it’s a collaboration between translators and original author but there are many subplots in say Don Quixote that would not be out of place in media as different as It’s Always Sunny in Philadelphia to many romcom movies(I picked the oldest novel I could think of, The Iliad and Odyssey can work though translation does a lot of heavy lifting in those cases for majority of readers).