English translation of german bureaucratic term: "Weglegesache"
The bureaucratic term "file/d under pending" can mean neutrally "file/d until it comes up for a scheduled action or until some event makes it current again".
But it can also have the connotation "file/d in the hope or expectation that no further action will ever be taken on it".
For example,
"Everything can be filed under pending."
From a humorous collection of "incredibly useful terms for the workplace".
And the following extracts from three Google books which show up on the first page of a search on "filed under pending" also appear to have the same connotation of "filed and (intentionally) forgotten":
Source: Legal and other Issues in Repatriating Nigeria's Looted Artefacts
Source: Making an Exhibition of Myself: the autobiography of Peter Hall
Source: Why we die
In my opinion Filed under pending would be a good, ambiguous title for a work of art.