Now of course the next question in relation to DSN if it was remastered for HD. Most of the CGI effects would have to be replaced. So would we want :-
a.>The SFX shots done to match the original broadcast version
b.>Instead of using recycled footage in later epsiodes would we want all new footage.
I'd definitely want them to remove the "clipshow" element of the final episode.
Even the "new" bits of that battle, such as the Excelsior getting hit from an energy beam from above, was a re-use of a background element from Tears of the Prophets.
There were a couple of other times where that happened too, you could tell they wanted the final battle to be the most epic of all but it felt like they were trying to achieve this on about a third of the money of Sacrifice of Angels or Tears of the Prophets
And even in the series 5 finale there's a re-use of the Jem-Hadar ship exploding from "The Search" too, I'd love to see new scenes in these places so the whole experience is made slightly less cheap.
I know, I know, I won't get what I want, but it'd be nice!
(And judging from all the debate on this above, possibly even EASIER than a blind recreation of what went before...)
Plus of course they could fix the Defiant in WYLB so it says NCC-74205-A
I'd sooner it say NCC-75633, the Enterprise, due to its fame should be the only ship to keep its registry.
There's nothing that makes a ship more famous (aside from being the signature vessel of a TV series or movie

) than warfare, particularly if that's what it was designed for in the first place.
The Defiant easily earnt its promotion to -A status and I can only hope that continued on through the next generation of starfleet "escort" vessels as a tribute to Sisko as much as anything else.