Standstill in the proceedings: active clarification instead of waiting.
If the investigation has been quiet for some time, this is often a sign of an imminent discontinuation. From a legal perspective it is worth taking targeted access to the file and clarifying the current state of the proceedings. A well founded suggestion of discontinuation can accelerate the matter.
Simply waiting risks the proceedings becoming active again at some point. A clear statement on the evidence gives the prosecutor arguments that support a discontinuation.