Examples:

• It was just a question of time for them.
• That is the factor, and not the question of time.
• At this point it's only a question of time.
• Because immortality is only a question of time.
• They don't realize that it's only a question of time.
• Everything seemed to return to the question of time.
• So it's just a question of time now.
• Because immortality... is only a question of time.
• It is, as always, a question of time.
• He know's you're here, it's only a question of time now.