I think he was responding to my post, Picard. I used the words "fully developed" in my response to him.
We most certainly do not know this for sure. We know he's in it. That's it. That doesn't count as development. That, once again, counts as a tease. An element of mystery that is intended to keep the audience guessing.
I didn't change your wording. The goal of development, and the implied meaning, should be FULL development. And yes, they do need to be fully developed. If they aren't then people are left confused, which isn't something most film-makers strive for. We need to know who these people are. If they come out of nowhere and their motivations aren't clear, then they haven't been developed enough to just suddenly side with other villains to take down Spider-man. The characters in TASM2 are present under different circumstances. There are relatively few of them and each is tied together under related plot-threads. Rhino might not need much development because there isn't much to him in this movie. But Harry and Electro are major players in this installment, so a lot of screen time is provided for them. They will already be fully developed by the time they show up in later installments. There is simply not enough time to do that for all of the Six in TASM3 and, at the same time, balance their screen time, Spidey's personal life, the primary story arc (Oscorp), and all of the other things I've mentioned previously. It wouldn't be a satisfying way to go about it.
Rhino would have to be further developed in the sense that he has to get in on the whole Oscorp supergroup angle. New characters, say Doc Ock and Vulture, MAJOR players in the Spider-man canon, would have to be developed from the ground up. Then they would have to be able to have their motivations described. Their relationships with the other villains would have to be established, as well as their reasons for helping out with Oscorp. AND, that would have to be balanced with development of other potential team members (including Felicia Hardy who, even if she is in this film, isn't in it much and would need further development), as well as all the aforementioned aspects that need to be considered. This all has to be one solid narrative. That can't be done in one Spider-man film that occurs so soon in the series. Not everything has been set up in the story-arc or in the universe itself. THAT is why they need to Sinister Six film. It can handle any character development for new characters as well as carrying out further development for those who have already been established.
If by "go a certain way" you mean fail to fully expound upon all the elements in the story, then yes, they could. A good story is more complicated than you're making it out to be. There's really nothing simple about it.
1. Yes, I was talking to SpideyFan about developed versus "fully developed".
2. Alright, yes the Man on the Shadows may not be fully revieled to the audience, but it makes more sense that it will be. Think about it... Harry will be sent down to the Chamber of Secrets by his pop. He gets down there and some random dude comes down the elevator, opens the doors and starts talking about "the future" and all of these cool things. You don't think Harry would be like "who are you?". Yes, the guy could answer in some obscure way, but come on, this is the guy that will help Harry turn into the Goblin a little later on, so it's likely the audience will get to know him.
3. Also, have you read my speculation about Electro using the word "doc". What can be seen in that seen is Harry, hanging with Electro, while he's undergoing some amping of his powers. You think Harry worked this all out by himself, do you? Of course not. Harry is just some rich kid, not some mastermind or bioelectric genius. Also in that scene you can make out a guy in a white lab coat (or at least his shoulder), right when Electro says "You can't contain it doc". So, you go around calling people "Doc" a lot? Of course not. That means the guy in the white lab coat (man in the shadows/fedora) is "doc". Some have tried to argue it's Dr. Kaftka, who by the way is dead, so nope... So the logical conclusion is that man in the shadows/fedora, who is wearing the white lab coat, who is showing Harry all of this cool future stuff, who helps Harry amp up Electro, is "doc". You know any other "docs" Do I have to mention that this same dude just walked by this little chamber with an arm harness that may become important in TASM3?
4. Yes, there are different degrees of developed. For example, Electro, Rhino and Harry weren't developed at all in TASM1, while Norman was only slightly "developed" as we were introduced to his issues a bit, just not the character. And yet all four of these characters will be in TASM2. Hmm...
5. So if a character is introduced (we learn his name), and his purpose is explained (how he is involved with Oscorp or the story) and we see his motives (why he does what he does); you wouldn't call that "developed"? Not even a little?
6. Your whole point about "fully developed" is interesting. Do you believe Rhino will be "fully developed" in TASM2? We're going to meet him, see him defeated and embarrased by Spiderman giving him motives to fight, but is that "fully developed"? Will we know what led to his life of crime? Will we see flashbacks to little Rhiny being bullied on the playground? No, he's nothing more than a thug with a grudge, but that's enough...
7. The idea of bringing the Six together really isn't that hard. They are not just suddenly going to come together to take down Spiderman. Someone needs to bring them together, and Oscorp is the means. For some it could be for the money. For some it's revenge (like Rhino if he comes back). For others it could be family, or power, or whatever. Look, just imagine a scene in TASM3 where Menken or Norman or Otto or Harry, whomever, brings the Six together. Some may already have their abilities, like Harry, while others may just be Mercs or hired thieves. The motives of these characters could be fleshed out during this. Why would this guy be willing to undergo this operation to have a suit grafted to their body? For power? For money? Etc... Black Cat would be easy. It's all for the money. Rhino would be easy. It's all for revenge. Harry would be easy. He already did it, for family. Doc Ock would be easy. It's all about the science.
8. Saying there is not enough time to give the audience enough and bring the Six together is like saying there isn't enough time to create Electro, show us Rhino, and transform Harry...
9. This idea of a prequel Sinister Six movie doesn't make a lot of sense. Yes, it would help give enough time to develop the characters and the future storyline (going against Spidey), but what's the story for them in their own flick? Why would we root for them, and then root against them in the next one? This whole idea is just so odd. If this is what they needed to do then just turn the Sinister Six into a two parter instead of this whole stande alone movie idea, which really means no Spiderman (otherwise it's a Spiderman movie)...
10. By "certain way" I mean to pull it off in one movie they would have to use characters that are part of the Six that have already been, or started to be developed AND use some that would help defeat the others. For example, Rhino and Harry have already (by the end of TASM2) been developed, at least somewhat. Use them. Next, introduce a couple more in this one, even as their alter-ego. For example, Felicia and Otto. Maybe even Menken (Vulture?). Lastly, have some of the Six turn on the others. For example, Black Cat could take out Rhino or help Spidey defeat Ock and Connors could be used as well in this way. They break Connors out of Ravenscroft. Force him to work for them. He turns on them and slinks off. By doing it in this "certain way" you don't have to defeat all 6, making things much easier.