I'd love a DMC1 remake, or even a 2 rebuild, but RE is probably the single most prolific franchise in Capcom's portafolio and they'd do more for it than for most other of their franchises. For RE they'd shoot a puppy on live television and advertise it, even if it was just to make a cheap commercial for an RE spin off releasing in 2019 on the Gameboy
Color. DMC, though, not so much. If DMC was a puppy... well, let's just say they wouldn't hesitate.
A Shadow of the Colossus remake, with just as much attention and care, would be the greatest thing in the world and I'd shot any 5 of you, 10 if it didn't have to be shoot to kill, to get it. Believe you me, I've thought about it, plenty... The remake, not the shooting any of you to have it done, part. That's just us, though. There just isn't enough interest outside of the hard core community to justify this, as much as I'd want it and plead for it. Plus, as
@DragonMaster2010 pointed out, what if in the proses they'd lost that intangible quality that made the game great? Everyone complains about the rigid combat, the bad voice acting, the camera angles, and the less than stellar dialogue, and if there were talks of doing this those would be the very first things everyone and their grandmas would start to demand be changed, but get rid of those things and you change the game completely.
I know people are excited for REmake 2 but that game completely changes what the original game was and turns it into something damn near unrecognizable. REmake 1 & 2 are not in the same spirit because in the first REmake they changed the dialogue, they added rooms monsters and mechanics, they changed voice actors, but the atmosphere, the feel, the roots of the game are damn near intact. That's not the case with REmake 2. That game feels, sounds, and acts nothing like it's source material. It's not in the same spirit and, by extent, it's lost something intangible, something fundamentally unique to it. I can't argue about the quality of the game because I haven't played it but I do know that just because a game is superior in every way to another it won't make that game as iconic. There is more to it than that and if there was to be a DMC1 remake there is the risk that for the same of standardization and accessibility the game will lose that fundamental something that makes it great. I'd rather just get a faithful HD port than a remake from the ground up, which I understand is hard to do, but it can't be harder than a remake.