With or without "will" in a when-clause

[Deepurple]

Dear teachers,

I am confused if "will be", instead of "is", should be used in the following sentence:

Regarding...., would the department head inform this meeting (I wondered if "of" is required here) when the Study review will be/is completed?

Thank you.

[5jj]

Would the department head inform this meeting when the Study review is completed?
At the future time of the completion of the review, the department head is to inform this meeting.

Would the department head inform this meeting of when the Study review will be completed?
The department head is to inform this meeting now of the future date of completion of the review,