Akira Toriyama created Dragon Ball, and now their anime series has become a reason for debate due to their new series launch. Now fans are debating over the new role of Super Saiyan in the upcoming anime series Dragon Ball GT. Franchises are also not showing any interest over the debate; they are just concluding the idea of the next segment.
Super Saiyan 4
Most famous anime character among fans Goku is here. During the fight with previous anime series main antagonist, Goku was on the level of Super Saiyan 3. At that level, he was finding himself unable to defeat a baby possession of Vegeta. Hence fans are hoping for the next level of Super Saiyan which is Super Saiyan 4. Dragon Ball GT can give you another level of famous character Goku.
As Goku fought with the baby possession of Vegeta. During the fight with the main antagonist of the last series, Goku was unable to compete. Then Supreme Kai rescued him and teleported him to the heavenly world. Then he was able to regrow his tail, and it was a painful process. He learned the process of becoming a Super Saiyan. Super Saiyan 4 can be a dangerous character.
Dragon Ball Heroes
Super Saiyan 4 is going to be a compelling hero. As we saw in the previous series that Super Saiyan 3 was also a persuasive character where Goku was able to do amazingly powerful things. So we can consider the next level of his power can become the overpowered character. Vegeta will find a difficulty to fight with that character.
A black star will give power to Goku, and with that power, Goku can completely transform himself into Super Saiyan 4. After transformation, Goku will be able to gain an adult form, and then he can regain his child form.
Vegeta in future gains ability to transform into Super Saiyan 4. His wife Bulma made a device which will process this transform.