I would be interested to see more backstory of captain De Santa. How did he become the right hand man of Allende? Why does he serve so vehemently when he is also abused by Allende?

Also, why did the Mexican government take in two wanted US criminals? It seems like they were looking for trouble.

Finally, more contact with other chapter 1 characters, such as Seth and Irish. It is a shame to never see them again after going to Mexico

They already remade west Elizabeth too. Just not mexico

I can’t see it happening, and if I’m honest, I don’t think Red Dead Redemption seems old enough to really need a remake at this stage. Say it did happen, expansions to the story would be good BUT I wouldn’t want anything too radical. I think a reference to Arthur would be good (even Hosea or Micah), or perhaps further mention of John’s daughter.

As for what @TimmysMaName95 is saying, I really like the Mexican chapter of Redemption and consider it my favourite part of the game. De Santa is certainly an interesting character, though exploring his character and backstory too deeply may feel too much like a distraction.

Regarding Bill and Javier, the latter was a Mexican revolutionary who then works for the government after the 1910 revolution, which would heavily imply that he was involved in it. Thusly, he became a hitman for Allende, so that’s why the Colonel protects him. With Williamson, it seems like Javier helped him into Mexico and then either asked Allende to protect him as well (who would’ve done so in a gesture of goodwill), or Williamson paid Allende to hide him from Marston.

This brings me on to my final point: I really like Javier and think that, in both Redemption games, he is not featured as much as he should be. He is supposedly a major gang member who has a rich backstory, so if Redemption had more story on him (his revolutionary activity, for instance), I’d gladly welcome it.

Maybe give Jack more of a storyline like how John interacted with people Arthur came in contact with you could do the same with Jack. Also give Jack more of a storyline to show what happened to him after he killed Edgar Ross.

It won't happen. Maybe one day they'll give Red Dead Redemption a full on proper PC release but that's it. Rockstar doesn't do remakes and frankly it's not necessary. Even by today's standards, Red Dead Redemption doesn't look that bad.

If a Red Dead Redemption remake ever happens. It will be a huge fan made mod for Red Dead Redemption 2 or on a PC emulator of the original game (which has already been made and was shut down due to legal action).

We should appreciate that we got West Elizabeth and New Austin in Red Dead Redemption 2. It's still awesome that Rockstar did that, especially New Austin, given that unlike West Elizabeth it has no role in the game and is there for fan service.

Realistically, I think you're right.