It's very clear to me that nobody commenting here really dove into all that leaked info/footage from last year. That's a good thing, really. It spoiled a LOT of little things pertaining to story, characters, gameplay and mission structure. It leaves very little mystery to GTA VI beyond some story beats and the actual graphical fidelity. It also removes a lot of questions and indeed optimism being posited here. Fun fact: even in an early alpha state on PS4 devkits this game was giving RDR2 a run for it's money in the graphics department. That is obviously subjective, but it's worth pointing out.
My biggest question mark is if this is STILL crossgen. It was running on PS4 devkits a couple of years ago, and the geometry between that and the most recent leak look pretty damn similar. If they are leveraging current gen for FPS, resolution, lod, draw distance, RT, etc...I could easily see this still being a crossgen game, which would be a shame. The reality is that Series S is already an albatross, the game was built on last gen, and R* circa 2023 is not the same company as R* circa 2018. For me it's still a coin toss as to what they decide to actually do here.