Yesterday a "international" poster was revealed on the GreenArrowTV.com website.
We can see that the show will be an hour long series. The hooded look will work as a tiny mask is a bit much in believing it would be adequate to conceal his identity. It should also be helpful when it rains, as seen above. Hopefully it won't obscure his peripheral vision.
Stephen Amell will play Green Arrow. Arrow premieres this Fall on Wednesdays.