Arrow showrunners Marc Guggenheim and Wendy Mericles recently tweeted their reactions to watching the rough cut of the trailer for season 4.

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Both Guggenheim and Mericles expressed great surprise at the trailer and promised that this one was going to be quite the doozy:

Mericles went as far as to suggest that the trailer will break the internet:

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Recently, the first look at the concept art for Oliver Queen's (Stephen Amell) new offices in season 4 of Arrow were exclusively revealed by Entertainment Weekly.

The space has got some really strong concrete bones and is lilted up with the phosphoresence of green. It's all very sci-fi and futuristic, with special docks for superhero suits, a rather purposeful looking conference table, and pretty neat car parking space -- with a sophisticated speedster in it -- within the confines of the headquarters itself.

EW reports that the space is called as the "Arrow Bunker" by the show's writers. Executive Producer Marc Guggenheim also spoke to the publication about the process and inspirations behind "designing the new lair."

Season 4 of Arrow will premiere on Oct. 7.

Watch the promo teaser for season 4:

Tags: Arrow the cw television