One of the suit in the spoiler is the H.A.P.P.Y. armor, made due to the death of his friend Happy. It has Happy's AI. This has to be explained, show that he dies and Tony grieving and builds the suit. This could be from the attack by Mandarin to Tony's home.
Another is the Stealth armor, they describe him using it to infiltrate Ten Rings hideout, short clip of him getting the idea and building. That is fine. Next up.
Layered Plating Armor, it fold for practicality and then another is the S.K.I.N. armor, which supposedly fails. Again, there has to be a bit of story there too.
Then the Particle Radiation Cannon, suppsoedly built becasue Firepower was too strong for the old suit, then he modifies it to the R.E.S.C.U.E. armor to help Pepper Potts. Again, this isn't going to need a 30 minute backstory but it still needs to make sense and can't just come out of the blue.
Then the Heart Breaker, consists of part of the other armors that has been wrecked. But somehow, he develops a modified version, Heart Breaker V2.0, aptly names Ultimate Iron Man.
Then they mention the Extremis suit where Tony finally becomes one with the suit. The mention "perfecting" it so we should see a montage of him trying to work on it and figuring things out.
Then the suits that can easily be explained as something he developed over the years (though I don't think IM3 is years and years apart from the Avengers film);, Space Suit, Brute (Hulkbuster), Aquatic and Asgardian (looks like the Destroyer from Thor film). Will this get more screen time than just background props? We'll see but it would be a waste to not see any of these in action.
So there, that is all the suits. And honestly, not all needs an hour of build up but some still need some deeper work and development, it can't just be "oh I need this suit! and then bam! It is made on the enxt scene. Are they going to do that 7-9 times in the film? How are you going to make them all fit in there? It seems like his suits keeps getting destroyed and dude just keeps upgrading or developing new ones as one is destroyed or beaten. Unless that whole film is simply all about that, suit being destroyed and getting rebuilt modified, then this movie going to be worse than IM2. I just don't see all that suit fitting in a 2 hour film.
A new one shouldn't throw viewers off guard or anything.
