先は

beyond that; ahead

→ 先
phrase Uncommon #12,719
beyond that; ahead Indicates what lies ahead or beyond a certain point. In contexts like 先は暗い, it can refer to the future.
JA: この道の先は海です。
EN: The sea is ahead at the end of this road.

先は暗い

The future looks bleak.

— イングリッシュ・ペイシェント (1996)

草太を渡った先は神戸

(Sota) Kobe is on the other side of the bridge.

— すずめの戸締まり (2022)

先は行き止まり

The road ahead is a dead end.

— TAXi (1998)

人はそれぞれ異なる道を進んで行き着く先は一つ

Although everyone may take a different path, we all arrive at the same destination.

その先は

And then what?

— タイタニック (1997)

この先は通れません

You can't go any farther.