some other time; one of these days; before long
Used when postponing something or suggesting a future meeting, often with a casual, non-committal tone. Similar to 'see you later' or 'we'll do it another time'.
今日は忙しいので、いずれまた会いましょう。
I'm busy today, so let's meet again some other time.
その話はいずれまたにしましょう。
Let's talk about that another time.
Compound of いずれ (sometime, eventually) and また (again). The exact historical derivation is straightforward; the phrase is a common adverbial expression.