I agree with Khev, it would have been better if he came to terms with Batman, proved that *****, Alfred wrong and also lived a philanthropic life as Bruce Wayne (with out stupid clean energy bombs).
The guy not only throws away Batman, he throws away his freaking family name too! Fox couldn't handle the burden of Wayne Enterprises before when Wayne let it go to ****, what's going to happen now?
Actually, maybe they would be better off. Every threat Gotham has faced, besides the Joker, has been because of Wayne Enterprises anyway. The city would be better off if everything associated with Thomas Wayne, died with him.
I always wondered what Wayne will do if Kyle leaves him or he gets sick of having a boring life as a tourist of Italy that goes to the same cafe everyday? What if he wants to chill with ballerina dancers?
Batman: The Animated Series said it best.
"I chose this life. I used the night. I became the night. Sooner or later, I'll go down. It might be the Joker, or Two-Face, or just some punk who gets lucky. My decision, no regrets. But I can't let anyone else pay for my mistakes."
Even the Dark Knight Returns Bruce Batman believed that a good death would be an honorable one where he's fighting the good fight against crime.