In the spirit of all the upcoming comic book based TV series being produced, this is a list of other comics and characters that I could see working as a TV series.
http://www.ranker.com/list/comics-and-characters-that-should-be-tv-series/andreww-curley,
Adam Strange
Couldn't you just see this being a fun sci-fi adventure series on TV?
Modesty Blaise
Started out as a comic strip in the early 1960's which quickly grew into a novel series, a couple of adaptations, and even a graphic novel/comic book. Modesty Blaise is described as "the feminine answer to James Bond", and I think she'd be a great choice for a television series.
Moon Knight
Probably the one comic fans hope to see make it into the MCU, whether it'd be in the movies or as a series on netflix; especially since they teased him during CA: Winter Soldier.
Night Thrasher
Another character who could work well amongst the "street-level" heroes on Netflix, and could lead to a New Warriors mini-series or movie.
Punisher
I'm pretty sure everyone is hoping for Punisher to be brought into the MCU, and I think the best way would be as possibly a future series for Netflix; assuming Marvel plans to do more after the series for Daredevil, Luke Cage, Iron Fist, and Jessica Jones followed by the Defenders mini-series.
Supposedly, all the series on Netflix will have a completely different tone from the movie universe or Agents of SHIELD. They'll be dark and gritty, and that would be the perfect for Punisher.
Black Knight
I'd love to see Black Knight be another character to get his own series, possibly on Netflix. It would be interesting to see a blending of the dark gritty tone with a mythical Arthurian medieval knights sort of thing.
American Vampire
With True Blood gone, there now room for a new vampire series on television; so how about one that's also a period piece? Set in the 1920's with flashbacks of the early 19th century.
Nightwing
Unfortunately, I could see him someday joining Green Arrow, The Flash, and the newly rumored Supergirl as another series on the CW. At least, he'd have better access to better villains without it being forced like using Ra's al Ghul in Arrow.
Arkham
I think just Arkham Asylum alone could make for an interesting series. I imagine a dark drama, set in the early to mid 1900's, centered around Amadeus Arkham. It would tell the story of the early days of the infamous asylum. How it came to be, Arkham's relationship with his mother, the brutal rape and murder of his wife & daughter, and the eventual deterioration of his mind.
Over the course of the series, time could jump forward and they could introduce some of the more recognizable characters.
Chase
A short-lived comic series, about a woman who's job it is to monitor and take care of any metahuman threats; I think it could have some potential as a TV series. Because of the dark, grizzly nature of some of it's characters; I'd wanna see it on AMC with The Walking Dead.