Could Workflows work for this? Once an edit is “ready for translation”, for example, it could be marked as such. Translators could then see all the “ready for translation” fields and when they’re done, mark it as the next stage: “ready for publication” or similar.
If you don’t have Workflows in your plan and don’t want to add it, maybe you can also mimic its basic functionality by adding a dropdown field to that model, like “Translation status: [New, Updated, Translated]”. Editors would still have to manually switch that dropdown when they update a record, but at least translators can filter by it easily.
(Going to leave this feature request up regardless, just offering some potential workarounds in the meantime!)