I was watching some of the Demon Souls remake footage, which looks great, but deep down I kind of wish they remade Dark Souls 1 over Demon Souls with this level of visual improvement.
I like Demon Souls, played it at the time and there's some great bits, but overall I don't find the game very memorable outside being the first Souls.
But just imagining the Capra Demon fight, or BLIGHTTOWN, or the 4 kings, or most of Dark Souls looking like this...oh well, missed opportunity. Doubt DS1 will ever receive a remake of this detail and quality. Bluepoint is moving on and won't want to do another Souls game and no one else is this capable.
I know some people think they'll do Metal Gear Solid 1 next, but that also seems like a waste. I love MGS1 but there's the original and Twin Snakes (sure Twin Snakes kinda sucks). If they want to go Konami, do Silent Hill 1 or 2. SH1 would be amazing coming from PS1.