I was watching the teaser and that final shot made me think. If the shot is not specifically made/altered for the teaser, what will its meaning be in the context of the film's script? As many have suggested, one of the possibilities is that the symbiote is making Peter see his costume as the regular red/blue one. If that turns out to be true, doesn't it mean that Peter will not be aware of the symbiote? Will he only realize he's wearing it in the end?
Following this line of thinking, why would Peter accept a sudden change in the colour of his suit? Even in the Secret Wars, Peter was initially suspicious of the suit's different appearance, although he was trying to get a new costume. Why wouldn't he be suspicious in the film? And what explanation would make him accept it?
Plus, if he actually knew about the symbiote, wouldn't he make a connection between the change in his colours and the change in his behavior?
Thoughts?