Same engine as RDR2 and GTA 5, but improved upon. Ray tracing is in use but limited to reflections and shadows. Leaker mentions not to expect ray-traced light until the PC release.
They also mention that what they said about the map size of the game in the previous AMA was misunderstood. What they meant was that the fastest transportation in RDR2 takes roughly 15-20 minutes to travel the longest possible route whereas GTA 6 is around 13-15 minutes. They mention that the map is bigger than RDR2's in landmass, but faster transportation means less travel time.
Complete freedom regarding exploration, you aren't forced to play through the main story and can go exploring anytime you want.
They also mention that one of the confirmed songs is "Always on my Mind" by the Pet Shop Boys. (Mentioned in the previous AMA as well but they mention the song name this time.)
Large number of building enterable and they all have textures unique to them but not every building is enterable as it is just too hard to implement.
Better physics than GTA 5 as RDR2 was taken as the base for it and then built upon for the modern world. Driving feels less arcadey than GTAV but not as weighted as GTA 4's.
The gap between consoles and PC release estimated to be 12 months by the leaker.
The leaker again refuses to leak the MC's name but does mention that he has a mother and a sister. The MC calls the sister Frankie and also the father is dead. (Maybe you play as the father in the 1970s part of the game as I mentioned in the last post who dies when the MC is a kid and then maybe you play as the MC in the modern-day counterpart).
The game has a "deceptive" amount of content already according to the leaker.
There's a famous 80s singer hosting one of the radio stations.
Monetization at the launch of Online will be a lot lighter than GTA 5's, due to the company being concerned about bad press.
More hair and facial types that can be mixed and matched and also supposed to be period-specific for the online counterpart. Also, there will be a choice of body type but nothing specific like Fat, average, fit, muscular, etc,
There will be a morality meter for the first time similar but not identical to RDR2's system. This will affect certain missions and outcomes.
2 limited maps within the game. Liberty City (pretty much on rails) and a "Cuban" island.
Supposed to be a satirical representation of America in the 1980s.
There's one side mission that's pretty much just one giant easter egg for the Goonies. It is not given to the player by an NPC but started by finding a map (Like one eyed willies).
There is one interesting detail, the leaker first states that the protagonist is older than Tommy Vercetti but then, later on, admits that he made a mistake and that the protagonist is actually 2 years younger than Tommy. (This is the most interesting detail as it can actually be an honest mistake on their part or it could be a clever and subtle way to fake their credibility by acting as if it was an honest mistake).
The North Point Mall looks really good now and it's a lot bigger.
There's a scarface style montage that holds a lot of meme potential. (This was an answer to someone asking the leaker if there are any memeable moments).
Main forms of transport stated to be cars, motorcycles, boats, helicopters, and seabirds.
Controls are just a refined version of what you've seen in previous titles. Gunplay is essentially a modified version of RDR2 mechanics. No parkour-style traversal mechanics in the game.
Full body nudity in strip clubs and even during some cutscenes. Also, if you build up a good enough affinity with certain women, you can "make love".
Fidelity and Performance mode similar to something like Miles Morales.
You can work out but transformation won't be as dramatic as GTA: SA. You have to also make sure that you're eating or you won't grow. Some more side activities mentioned by the leaker are gambling, dancing, and roller derby which they also previously mentioned in the last AMA.
NPCs are like RDR2 but in a GTA setting. The police don't just shoot you to death for small crimes anymore. If you get the option to bribe the officers for petty crimes.
Using fists have better development than the previous GTA. You can grab people and punch them in a clinch. There are unique animations for stealthy kills.
One example of better car detailing that the leaker gives is of Ferrari Enzo (not called that) and it looks as if it could be in a GT7.
The leaker states that there are a lot of 80s references in GTA Online recently. Also, the song choice for casino update was 80s related.
When someone asked if there is a protagonist replacement point like in RDR2, the leaker declined to say as it might spoil some of the story. The prologue and 1st chapter are set in the 1970s all the way till 1987.