TASM3:
Villains:
Kraven, Mysterio, Ultimate Goblin
The main villains would be Kraven and Mysterio, who would both be a mix between 616 and Ultimate versions.
Sergei Kravinoff would be a kind of Russian Bear Grylls type character, the host of a TV show
Kraven: The Hunter in which he pits himself against nature.
Quentin Beck would be in charge of the special effects on the show, to make Kraven look like he can fight Grizzlies bare handed. The two would be convinced that Spider-man is a fraud and would call him out to prove himself against Kraven: The Hunter, obviously SM is not a fraud, and he simply brushes off the duo.
Gustav Fiers takes this opportunity to give Sergei and Quentin the resources to allow them to defeat Spider-man, giving
Kraven super human strength, and Quentin money and tools and technology to become
Mysterio (he would look like Ultimate Mysterio with a white mask that emits smoke. the two would work together to attempt to defeat Spider-man on international TV, but of course Spider-man would win.
As a subplot for the movie, Oscrop will be trying to bring Norman osborn back to life using a combination of the spider-venom and a near invincible alien organism that the Oscorp space program has discovered, it would work for a time, and Norman would take back control of Oscorp, let his son out of Ravenscroft etc, he may also send
Felicia Hardy and
Black Cat to spy on Peter Parker as Spider-man, and she would flirt with PP, and confuse him as he has just me MJ!! However Norman would later mutate much further into a hulking beast, this would lead to a confrontation with Ultimate Goblin towards the end of the movie in a similar way as Rhino appeared in TASM2, Spiderman should lose this fight, to be rescued by Black Cat. this would lead into...
Sinister Six:
Lineup:
Green Goblin, Rhino, Doc Ock, Vulture, Kraven, Mysterio
Enemies:
Ultimate Goblin
With the escape of Ultimate Goblin, Oscorp brings together the entire sinister six to bring down Norman Osborn, there would be a cameo from Spider-man as he helps defeat Goblin at the end of the movie, however he is bled on by Norman's corpse and the blood is thick and black, he is overtaken by this and is subdued and taken away by Oscorp. the events would have been witnissed by journalist Eddie Brock who goes to investigate the scene, treading on some drips of the black blood this would lead into...
(if Spider-man does not or cannot cameo, the blood could simply attatch directly to Eddie who could be at the scene after the battle, skipping out spider-man connection all together, however it is made using the original Spider Venom so it does still retain that)
Venom
Enemy:
Carnage
After the events of Sinsiter Six, Spider-man has has Norman's blood removed from him, and is stored as Ravenscroft, the blood seems to be alive, and at some point escapes to seek out Kletus Casady who is also restrained at the institute, he would then break out and be attracted to the rest of the blood, wanting to become whole, but the rest of the blood has taken over Eddie Brock, the symbiote causes violent tendancies, but Brock is a nice enough guy so he is portrayed as an anti-hero completely in this universe, Carnage is the villain. Carnage and Venom are drown to each other and the movie will be told from the perspective of the two characters. leading to a fight at the end to determine which of the two halves of the symbiote will inherit it all. obviously Venom wins, by absorbing Carnage into himself and killing Casady.
TASM4:
Villain: Sinister Six
Teamup with Venom
the culmination of the last few movies would see Spider-man and Venom, possibly Black Cat, (potentially even Lizard!) teaming up to defeat the Sinister Six.
Key preditions:
Kraven and Mysterio will be the next villains
Norman will become Ultimate Goblin using a combination of the Spider venom and an alien organism
Ultimate Goblin's blood will be Venom
Doc Ock and Vulture will be introduced in Sinister Six, however they could cameo in TASM3