the jury is still out
US /ðə ˌdʒʊr.i ɪz ˌstɪl ˈaʊt/
UK /ðə ˌdʒʊr.i ɪz ˌstɪl ˈaʊt/

1.
尚无定论, 悬而未决
a decision has not yet been made about something
:
•
The jury is still out on whether the new policy will be effective.
新政策是否有效,目前尚无定论。
•
After all the discussions, the jury is still out on who will lead the team.
经过所有讨论,谁将领导团队仍未有定论。