It would be nice if XSLT were used for the Holds queue - or if there was some way to customize the bib display. Some libraries want series info to show on here but it's not going to be wanted in all libraries so XSLT was the first thing I thought of. Maybe keyword to marc mapping would work as well ...
We have since added more information to the holds queue display with CSS classes to hide/display (300, edition, publication details, ...) I suggest changing this for just adding the series information.