Remaster the entire Deep Space Nine series
Sorry, but Deep Space Nine doesn't need any remastering! It's effects hold up beautifully, at least IMHO. And then again, DS9 never was about the effects in the first place; it's about the stories ...
Bashir: »Out of all the stories you told me, which ones were true and which ones weren't?«
Garak: »My dear doctor, they're all true.«
Bashir: »Even the lies?«
Garak: »Especially the lies.«