Personally, I think that Dead Space isn't old enough to actually merit a "remake", it still holds up today mostly. Some parts of the gameplay, like the Asteroid Turret section and the Zero-G sections, they have definitely not aged well in my humble opinion, but that's part of the game's charm IMO.
Still, with what I've seen so far, I will remain cautiously optimistic. Emphasis on that last bit, because we're still quite a ways from release and there's no guarantee they won't pull a TLOU2 and pull the rug out from underneath us once they've got enough people hooked.