Nah. The 'new' version is basically the one you get on the Xbox One X which is a backwards compatible 360 game. It runs at native 4k but aside from that(and a more stable fps capped at 30), there are no other emhancements.
I agree with you on the PS3 version of RDR1. Rockstar games looked the worst on the PS3 but hey, at least you could play them without any freezing issues.
Oblivion, Fallout 3, Fallout NV, Skyrim...
they all became unplayble on the PS3. Once the size of the save file was past 10 MB, you'd get freezing issues every 30 minutes. Funny how Bethesda released 4 games on the PS3, all of them with the same issues. I think at one point J. Sawyer pretty much asked people to avoid the PS3 version of Fallout NV.