Maybe you can say "In the near future or distant future".

"Far into the future," "In the distant future," "Long from now," Those are the first three choices that came to my mind.

"many, many years from now", "in the distant future", "in the far distant future", "a long, long time from now", etc.

There are a number of ways you could express a future thought... though, it depends on context, the most appropriate way to express that thought.

In medical school we are loosely taught that U.S. Americans are a present tense,here in the moment culture of people as a generalization. I am a Latina so we have tense usage very differently based on oral traditions of history and so this is a conceptual phrase. Some might say 'A long,long time, far off into the future. ' some might say Someday or a long time from now people will all be blue. Far into the future, x will happen. It is not like any Cyrillic or romance language. One day I will be rich. References to tine conceptually is what it is.