Re: 8 years of no Batman or Bruce Wayne, and NO ONE could pick up the trend?
Ive always appreciated the legacy idea myself. Or Bruce training an army, spread around the world. The silliest thing would be to expect Batman to fix the city permanently. How? he can't. Also Bruce dying of old age as a miserable man who is just content (or not) with what he did...is too depressing for me. You still need a successor or else Gotham carries on through the generations as a hell hole but this time without Batman. That's just as depressing.
Even if he were to fix something for decades, it cant last forever. Batman's epic story begs for it to be a legacy character. And the hint has always been in his sidekicks and the reason behind them.