N2
やがて
Before long, All too soon, In the end, Eventually
毎日漢字を読む練習をしていれば、やがて小説を読めるようになるだろう。
If you practice reading kanji every day, eventually, you will be able to read a novel.
Explanation
「やがて」 has 2 uses
1Soon
Before long a time or state will come, like 「まもなく」: 「やがて夜が明ける」 (dawn will soon break), 「やがて30歳になる」 (I'll soon be 30).
もう5時なので、やがて日が沈み始めるだろう。
It is already 5 p.m. so the sun will probably set soon.
やがて30歳になるけど、お金も名声も持ってない。
Although I will be 30 all too soon, I have neither money nor fame.
2Eventually
As time goes by, things end up a certain way: 「雨はやがて雪に変わった」 (the rain eventually turned to snow).
やがてきみは失恋したことも忘れるかもしれない。
Perhaps, eventually you will forget you were once heartbroken.
そのアニメもあのアニメのようにやがて人気がなくなるでしょう。
That anime will probably lose popularity like that anime eventually.