when people talk about "I want FF7 re-released in HD Graphics" means that they want the game re-released with up-to-date graphics. They want to essentially play through FF7 with Advent Children caliber environments and characters.
Personally, I think re-releasing games is a silly notion. Its a creativity sink. These teams that are re-releasing these games are wasting their creativity polishing a turd.
If you want to play FF7, play FF7; if you want to play Baldur's Gate:SoA, play Baldur's Gate:SoA