Regardless, there are plenty of directions the story of Aquaman 2 could go. Aquaman’s end-credits scene seemed to set up Black Manta and Dr. Stephen Shin as antagonists in the sequel, and there are of course other comics elements it could draw from as well. Whatever the story is, Jason Momoa will also have his beard back by the time we see it, which is probably for the best.
Article source: https://www.cinemablend.com/news/2471564/jason-momoa-says-aquaman-2-story-is-locked