No, it is not.
The promo also teased the Bat-signal and Oliver and Barrys differing opinions about the existence of Batman.
You dont believe in Batman?

Jack Rowand/The CW
says Gustin in the teaser, and Oliver replies, Batman is an urban legend.
So his disbelief makes sense.
Watch the promo above.
In his absence, Gotham fell and basically became a failed city.
Our approach is: What does Gotham look like after the Batman has been gone for three years?
So its not a happy place.
Our guys walk into a grimy, scary Gotham.
AddedArrowconsulting producer Marc Guggenheim: Its a dead city.
Its the worst case scenario.
The reason no one talks about Gotham is the city might as well be dead.
Its practically a ghost town.
John Deegan (Jeremy Davies) rewriting reality.