It's not likely at this point. Everyone says, "he's still the 3rd best player in the world". I get that, but he has two things that are going against him:
1. Alcaraz and Sinner are going to make it even more difficult going forward than it has been to this point. Remember, Sinner missed some 1000s this year due to suspension. It's unlikely that happens again. Alcaraz has also seemed to grasp a level of consistency from tournament to tournament that he previously lacked as well which will make it tougher. Given that both of them are so young, it's likely they're both better next year than they were this year too.
2. Djokovic is still aging. 2026 Djokovic probably won't be as good as 2025 Djokovic, just like 2024-2025 Djokovic wasn't as good as 2023 Djokovic. He'll be 39 next year so it's unlikely he'll complete maintain the level he has right now. In 2027, he'll be 40, and I can't imagine any 40-year old winning a slam so if he's going to get one, it has to be next year, and that doesn't seem likely. We're not talking about a guy who "just has to win one over the next 5 years"; we're talking about a guy who needs to win one quick before it's too late.