Oliver Questions his Legacy in First Arrow Season 5 Synopsis

The synopsis for Season 5 of Arrow has been released. The new season will see the return of Colton Haynes as Roy Harper and the promotion of Echo Kellum from recurring star to series regular.
In the upcoming season, “Newly appointed Mayor Oliver Queen finds himself challenged as he fights on two fronts for the future of Star City. With Diggle back in the military and Thea adamant about hanging up her hood as Speedy, Team Green Arrow is down to just Oliver and Felicity – but they’re no longer the only vigilantes in town.
Green Arrow’s public defeat of Damien Darhk at the end of Season Four has inspired a new crop of masked heroes to step up and defend the city, though their painful inexperience makes them obstacles, rather than allies, in the field. The arrival of a deadly new adversary will force Oliver to confront questions about his own legacy, both as
mayor and as the Green Arrow.”
I know they mentioned the first episode of the season will be called, “Legacy” and that will be the theme of the episode, but am I wrong in assuming that is going to be the theme of the season. What do you guys think?
Source: CW