Executive Producer Andrew Miller posted a Facebook update about their office getting the new posters as well. Below is the photo he posted which is a variant from the one above and much larger.
You can view the official image used for these posters here.
Lastly, these advertisements have been showing up on buses, as well! Here is another photo by EP Andrew Miller that he tweeted.
Advertising on buses like in the photo above is nothing new for Warner Bros. and The CW. I remember years ago when they did this for One Tree Hill and Supernatural except the ad covered the entire bus, which was awesome.
These sightings gave us at Populr an idea. Click here for more info!