This might be fan fiction, according to Movie Pilot we might see 6 Superhero shows soon.
The CW is planning Arrow, The Flash, Legends of Tomorrow, Titans, Green Lantern and Justice.
Arrow would have Stephen Amell, David Ramsey, Coity Lotz, Paul Blackthorne and Echo Kellum in the lead in season 6.
The Flash would have Grant Gustin, Candice Patton, Danielle Panabaker, Carlos Valdes, Tom Cavanagh, Jesse L. Martin, Wentworth Miller and Dominic Purcell in the lead in season 4.
Legends of Tomorrow would have Matt Ryan, Colton Haynes, Violett Beane, Franz Drameh, Victor Garber and Jonathan Schaech in the lead in season 2 and 3.
Titans would have Willa Holland, Emily Bett Rickards, Keiynana Lonsdale and 2 more as Dick Grayson and Raven in the lead.
Green Lantern would have the character Alan Scott in the lead and a love interest, best friend, etc.
Justice would have Brandon Routh, Ciara Renée, Joseph David-Jones, Katie Cassidy and more are set to join in on Justice.
Again this is for 2017-2018 and can be fan fiction.