I don't know if this suggestion exist. But, I'm wishing for NU to let readers follow the translators or like instagram where people follow each other on NovelUpdates
The main site does not have an alert system or anything of the sort, so this isn't possible to implement without a major overhaul of how the site works. Don't expect it to happen.
Good feature idea. Cheap way to do it would just be to have a translator list based off the reading list, and let people filter by that on a search like how we do for reading lists right now. Not that I know how the backend is implemented though so it could be hard depending on various factors.