The USS Equinox from Voyager should have been the USS Hera from TNG.
Rewatching TNG: Interface where Geordi's mother goes missing without a trace while in command of the USS Hera. We ultimately never really know what happened to her ship and its disappearance is reminiscent of how the caretaker abducts ships in Voyager.
The events in Interface preceeded the events in Voyager by five years, however I think this is a missed opportunity to link stories and provide an interesting TNG tie in.
Anyone else have inter series story arches that could have fit if explored?