Yeah, it would. I suspect the reason why it hasn't been done yet is because RDR1 is available via backwards compatibility for XBox. That and the fact that apparently RDR was based on a branch of their engine that sat outside their usual update cycle and used unorthodox programming via ramshackled code to do things that make it harder to port. It was also an engine that had gone through so much revision that it diverged from the usual Rockstar engine, and therefore couldn't just be receive the simple update or be merged. RDR's engine had essentially become its own thing that made it harder to port, and they were surprised by the time they had it shipped that it even ran given the code was such a mess. This is also the main reason why a PC version hasn't seen the light. But wouldn't that mean it's even more suitable for a remake or remaster using the newer engine and bring it in line with the others?
There's much potential, given that RDR2 leads directly into RDR, and it's a shame that a large amount of people who've never played the original game are not going to be able to experience it. It's also the only game series aside from Max Payne that they have that have direct sequels, vs the GTA series which have new protagonists with each new game.
