BRISBANE – Novak Djokovic said Sunday he planned to keep playing for “years to come” — with more tournaments on his schedule in 2025 — as he looks to take down the new guard led by Jannik Sinner and Carlos Alzaraz.The 37-year-old had a disappointing campaign last year by his standards, failing to win a Grand Slam and claiming just one title — Olympic gold in Paris.He has slipped to number seven in the world and said he wanted to get his ranking back to “where it should be”.”I’m looking for a good start to the season, I’m looking for more consistency across all the tournaments,” he said…