I cant see any reason why they would. It is still a fantastic dungeon. It could be retuned I guess to no longer be a raid but even then I don't see it happening.
STV doesn't look to have taken massive structural damage (yet anyway) and there is no reason to just delete it.
while blizz haven't really clarified it yet, the impression I've got from the various comments indicates that old dungeons and raids will remain largely untouched, receiving only minor changes where needed to fit in with changes to their locations.