Thread:Wally Valdez/@comment-12106514-20150828003702/@comment-6331988-20151106225458

It could be a character being dead, like in the real show.

Or, if you want to do something more original, you could show some big event such as Star City being ruins, or even Oliver revealing his identity in public. Then you could have the season be leading up to how that happened. I'd go with showing Star City is ruins, but not showing what caused it.