The only way I would be interested in a "remaster" this soon is if they add the following content:
>Finish the RDR1 map (add Mexico)
>Port RDR1 campaign into the RDR2 engine and have the end of RDR2's story run almost seamlessly into the first game's story. Maybe add an extra mission of John and his family getting captured by Edgar Ross.
>Port Undead Nightmare into the RDR2 engine.
>Give us Undead Nightmare 2 (or some other supernatural/sci-fi equivalent) with wacky stuff to find and do across both RDR2's map add well as RDR1's map.