I think Triton, Ariel's father, would be a crucial character. He has great power as the king of Atlantica. After Ursula's return, he might have to make some tough decisions, like whether to trust Ariel's new ideas on how to deal with Ursula or stick to the traditional ways of the underwater kingdom. And perhaps there could be a new mermaid character, a young and brave one who idolizes Ariel and wants to help in the fight against Ursula, bringing some fresh energy and new abilities to the story.
Flounder would definitely be there. He's Ariel's loyal friend and would be by her side to help face Ursula again.
Sebastian could also play a major role. He has a lot of knowledge about the sea and its rules. He might use his musical talent in a different way this time, like using his singing to disrupt Ursula's magic spells. Also, Prince Eric could be important. He might be on land at first, but when he realizes Ariel is in danger, he finds a way to come to the underwater world to help her, using his human skills and resources to fight against Ursula's return.
Chapter 315, "New Policies for Long Mountain, Cold Apple Tree and the Silver Mine (Part 2)", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. The chapter gives readers a real answer by opening on In April, the march begins from Xia City to Longyou; in May, the... and ending on A great victory inevitably comes with great loss..
Chapter 331, "Zhu Shun, Huang Tianxi, the Third Cold Yuan Banquet of Great Xia, and Xia Yuzong", is the clearest early answer because it turns Huang Yong's situation into a concrete plot event. The setup is Inner City's main street, Zhu Shun led his wife Huang Yuniang and..., but the pressure keeps building through Zhu Shun was dressed in a muted red Xuanling Robe, and his wife and....
Chapter 327, "Beast Tide Showdown, the Wolf King’s Gambit, and White Dew Gu’s Last Stand", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. The chapter turns that into something concrete by moving from The thunderous roar came from the flanks of the depression. to Feeling his power surge within, Xia Hong suddenly exerted himself,....
Chapter 349, "Attempting to Cheat, East Ridge's Strength, Lu Yang's Tactics", is the clearest early answer because it turns Lu Yang's situation into a concrete plot event. The setup is The saying "Gaining ten thousand jins of silver is not as valuable as..., but the pressure keeps building through Setting other things aside, Yang Zhun's reputation for valuing trust....
Chapter 312, "Reining In, Killing, Shock and Submission (Part 2)", is the clearest early answer because the violence around Li Xuanling becomes final instead of hypothetical. The chapter turns that into something concrete by moving from You overestimate those so-called high-level figures you keep talking... to The resource allocation model of the Longyou camps predestined that a....
Chapter 304, "The Defeated Longyou Army, Xia Army Cannot Escape, Holy Tripod", is the clearest early answer because Great Xia gets a payoff that changes the stakes. The setup is In just a moment, roars erupted continuously from the direction of..., but the pressure keeps building through Determining an army's combat power relies not only on cultivation,....
Chapter 341, "Moao's Nine Towns, the Inspection System and Zhenyu, Li Hu and Hong Yuru", is the clearest early answer because it turns Xing River's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The entire Moao Mountain Range stretches from northwest to southeast. and follows through with However, he didn't forget Wang Tao's earlier words, glancing at the....
Chapter 312, "Reining In, Killing, Shock and Submission", is the clearest early answer because the violence around Xia Chuan becomes final instead of hypothetical. The setup is May I ask, Minister, what should we do?" As Yuwen Dao and the others..., but the pressure keeps building through Currently, the over ten thousand Earth-digging Realm controlling the....
Chapter 41, "Actually Still the Museum Director?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. It opens with The live streaming room suddenly boiled over again. and closes on In contrast, Wen Jiaojiao didn't have such awareness..
Chapter 348, "Zhu Ling in Dire Straits, Eight Camps Martial Contest, Betting Five Years—East Ridge Has Fallen!", is the clearest early answer because it turns Lu Yang's situation into a concrete plot event. The chapter gives readers a real answer by opening on If you defend or attack the stage successfully, you can earn one... and ending on This only made Zhu Tong angrier..