I think it's more of a bug than a new functionnality but support asked me to open a new idea request :
If you rename and assembly with drawings associated to sub-assemby parts, using "As a Structure with Associated Objects" view won't display the drawings, whereas using "By Associated Objects" shows it :
As a structure with associated objectsBy associated objects
Our designers rename the parts according to the main assemby structure (the part name contains the assembly name), and the drawing must have the same name as the part. As windchill works today we can't use the structure view...
It should be easy to fix, please PTC, add the drawings in "As a Structure with Associated Objects" view !