Re: 8 years of no Batman or Bruce Wayne, and NO ONE could pick up the trend?
Yes. I read the clean energy project as Bruce's attempt to move on after Batman became obsolete. It let Bruce channel his energies into helping the city, rather than wasting his time in the cape and cowl and lingering on what's past.
"..the mere intimation that there might be more to a heroic narrative than the heroes are the Good Guys, the villains are Bad Guys and the heroes should Win a rousing Victory appears to be in itself such an offensive contention that it arouses a kind of defensive knee-jerk hysteria just by surfacing." - Richard K Morgan