Anybody know where DS9 stands in respect to the issues discussed in this thread?
Not going to happen. Ever.
The only reason TNG is being considered is because it was the best selling Trek series on DVD (even more than TOS). DS9 and VOY sold much worse so they can't justify a remastering for those.
As for ENT, it's HD ready (and only four seasons) so they'll probably release BluRays of it next year.