Things you may have missed in the new UK Avengers: Age of Ultron trailer

In this trailer it is revealed that Ultron was designed to 'protect people', and in the Marvel Cinematic Universe (this doesn't really follow the train of logic from the comics) Ultron was created by Tony Stark accidentally through the Utron program, which he explains to Bruce Banner whom instantaneously puts the pieces together: That Tony accidentally created Artificial Intelligence, aka a sentient being, through the "Ultron program."

First of all, if you haven't seen the trailer yet, click this video: 

Now I don't know if you noticed, but that was a guy called The Vision at the end of the trailer.  I'm not quite sure what the relevance of the gem on The Vision's forehead at the end of the trailer is--Yes, he always has a gem on his head. But I'm PRETTY SURE--considering that this is the kind of thing the MCU always does-- that it might be one of the Infinity gems. It was yellow, which would correspond with the Reality gem. The Reality gem gives the user the ability to "fufill wishes, even if those wishes contradict universal or scientific laws"; it also "allows the user to rapidly jump from one reality to another (one alternate universe to another) and create different realities as well.

 Now I don't know if you guys know much about Ultron, but he always makes sure he has a new version of himself ready before he goes out to fight. But every time he knows more and more about his enemies (because he keeps his memories), so that he  is better, and stronger, so that no one can defeat him. Perhaps the Marvel Cinematic Universe (MCU) is going to give the Reality gem to The Vision, so that The Vision (with the abilities associated with the reality gem) will be the only one who can defeat Ultron. Robot on Robot combat.

Another reason I think that The Vision has the Reality gem is because they showed Tony Stark with Loki's staff (another infinity gem) in the same trailer. Accident? Maybe. But probably not.  Also, using the reality gem  would also let  the MCU continue to go down the Infinity Gauntlet road-- WHICH I AM SO EXCITED FOR.