In the comics, Batman doesn't die at the hands of Bane. Bane is a powerful adversary, but Batman finds a way to overcome his challenges and live on to fight another day. Their confrontations are epic, but Batman's resilience prevails.
Well, Bane achieves this by outsmarting and overpowering Batman. He uses his raw strength and strategic planning to inflict a severe injury that incapacitates the Dark Knight.
Batman defeats Bane through a combination of physical combat and mental tactics. He trains hard to improve his strength and endurance and then uses his knowledge of Bane's fighting style to gain the upper hand. Also, he sometimes gets help from his allies.
A common plotline could be that Batman gets involved with another female character. Maybe he starts to develop feelings for Catwoman due to their shared history of being on the wrong side of the law sometimes. This new relationship on Batman's part could make Wonder Woman feel betrayed and her heart broken.
One key theme is the battle between good and evil. Batman represents the good, while Bane is a formidable foe representing evil. Another theme could be the idea of redemption. Maybe Bane has a backstory that gives a glimmer of hope for his character to be redeemed. Also, power and how it can be misused is likely a theme, as Bane is often shown as a very powerful antagonist who uses his strength in a negative way.
Obviously, Batman is one of the main characters. He's the caped crusader with his gadgets and detective skills. And then there's Bane. Bane is a really strong and menacing character. He has a backstory that makes him more than just a brute. There might be other minor characters too, like Batman's allies or people in Gotham that are affected by the conflict between Batman and Bane, but Batman and Bane are the central figures.