THE SINISTER SIX (2016)
Honestly, this spin-off should not be a antihero´s movie because the group of Sinister Six are not. The Sinister Six will be a movie The Avengers´s style. Then, this film would be about a six of mankind´s greatest enemies form an alliance to destroy New York City and Spider-Man.
The Sinister Six would be Green Goblin/Harry Osborn, Doc Ock/Ashley Kafka, Vulture/Adrian Toomes, Rhino/Aleksei Sytsevich, Chamaleon/Rajit Ratha and Kraven/Sergei Kravinoff.
This spin-off would be a continuation of The Amazing Spider-Man 2.
Maybe, this film will be called The Amazing Spider-Man VS. The Sinister Six.