I was looking on that initial countdown website and it's since then been turned into a schedule page.
The only thing I can find on it regarding Allstars is 'Toro'.
As translated, the Allstars segment says:
PlayStation ® All Star Battle Royal
Contents: Stage lonely and spoiled by. Very pure and innocent. "Toro" like that, fighting against fellow adventurer Nathan Drake Kureitosu God of War and the strongest!
And this is scheduled for Saturday.
So maybe there are no new reveals at TGS...
Only time will tell for sure though.
Here's the link if you wanna check it out for yourselves:
they aren't going to reveal the reveals before the event on the summary... It'll probably be like their E3 reveal or something, where they show the game, and then reveal new characters.
Omar - "what are you guys doing? Why did you get rid of crash!"
Game devs - "we wanted to put in evil Cole so we had to get rid of everyone else the fans wanted"
Omar- "Oh nice, good idea. I didn't think of that"