+Guggenheim refers to the Vixen  animated series as a spinoff, that will feature characters that  currently appear on both Arrow and The Flash.   Guggenheim also adds  that the series will be a 6-part origin story for Vixen.
+One fun scene Guggenheim teased  was that Oliver (Stephen Amell) will find out that Felicity (Emily Bett  Rickards) kissed Barry (Grant Gusting) in the animated series.   Guggenheim says fans have been asking him for quite sometime whether  Oliver would ever find out about that.
+Vixen will have  a "big magic component"; something not previously explored on either Arrow or Flash.
+The Vixen animated series will be set in Detroit as a reference to the characters Justice League Detroit comic book roots.
+Writers Keto Shimizu and Brian Ford Sullivan are working on the series with Guggenheim.
+Here's what Guggenheim had to say  about the animated series serving as a backdoor pilot of sorts for a  live-action introduction of Vixen on Flash or Arrow.  
"We always  say "never say never," and if the character resonates with people, that  would be wonderful. I would love to be in a position where CW said to  us, "Hey, we want a 'Vixen' live-action show." That'd be wonderful.  We'll have to sort of see how things play out. But our goal really is to  produce the highest-quality animated series. We want people to come to  this who don't normally watch an animated show. We really want fans of  "The Flash" and fans of "Arrow" to go to CW Seed. We really tried to  approach it the same way we approach a pilot."
+As far as the characters from the  live-action shows voicing their animated counterparts in Vixen,  Guggenheim says many of the actors are just finding out about the  project for the first time but the response from them has been  encouraging so "all signs are good".
Hopefully, Vixen does eventually make her way over to the live-action  Arrow and Flash TV shows.  With Katana, Black Canary, Huntress, Speedy  and even Felicity Smoak, Arrow is definitely making it possible for The  CW to have a 
Birds of Prey spinoff.  
http://www.comicbookresources.com/?page=article&id=58392