I hope he's not relying solely on Neymar, given the ocean of good players. Neymar stopped being a household name a long time ago; he's more of a minor celebrity than a great soccer player. Currently, he's living in the past, while Messi and CR7 are active and performing at their peak. Relying on Neymar for anything is repeating mistakes.
It is impressive that in July 2025, with one year to go before the World Cup, we are much more likely to see Messi and Cristiano Ronaldo compete once again, aged 39 and 41 respectively, than Neymar playing for Brazil at the age of 34

I have the impression that Ancelotti will have less patience with Neymar than the other coaches who have had him so far
If he doesn't show that he is ready to play, I believe he may be ruled out early on so that the team can move forward
A great player who has recently emerged is João Pedro from Chelsea, who scored three goals in the semi-final and final of the Club World Cup. The player is 23 years old, and I have the impression that he may be called up for the last two qualifying matches next september