가 필요할

will be needed

→ 가
phrase Rare #17,981
will be needed Used after a noun ending in a vowel; the noun is what will be needed. The full sentence often expresses that someone will need something.
KO: 의자가 필요할 것 같아요.
EN: I think we'll need a chair.

계속 그 의지가 필요할 겁니다

You'll need to maintain that determination.

— 페인 앤 글로리 (2019)

에너지가 필요할 테니

Because you'll need energy.

— 에브리씽 에브리웨어 올 앳 원스 (2022)

하지만 언젠가는 노스스타나 스펜서의 토스트호도 수리가 필요할 터 였다.

But one day, Northstar or Spencer’s toast boat would need repairs too.