This is the 4070th most frequent Korean word.
있겠지만
"Would/might exist or have, but..."
있겠지만 is used here to express a likelihood or supposition about something being interesting, serving as a contrast before presenting a contrary fact.
이 영화는 재미있겠지만, 다른 계획이 있어서 못 가요.
This movie might be interesting, but I have other plans, so I can't go.
있겠지만 conveys a hypothetical or presumed benefit, showing contrast with the current limitation.
그 책은 유익할 수 있겠지만, 지금 읽기엔 시간이 부족해요.
That book could be beneficial, but I lack the time to read it now.
있겠지만 is utilized to express potential difficulty, setting up for a positive resolution following the conjunction.