With Robert Downey Jr. having perfectively portrayed Tony Stark/Iron Man throughout many Marvel Cinematic films, his career as the armored avenger would not be complete without taking on the character's true arch enemy Mandarin.
With the real Mandarin's debut along with the Red Skull's returned confirmed by Kevin Feige, the film studios' president along with the rest of the staff in charge of the characters and plans for the 4th film are surely thinking long and hard on how the actual Mandarin of the Ten Rings will adapt in the Marvel Cinematic Universe flawlessly along with all ten of his rings being magic powered
Iron Man 4 is the best time to have the real Mandarin appear in the Marvel Cinematic Universe not only so we won't have to wait more than ten years from now but it's also so that Feige and his crew don't forget and that Kingsley will be able to reprise his role as Trevor Slattery from where he left off in the One Shot All Hail the King and where Kingsley will be at in Iron Man 4 is captivity.
To avoid skipping out on the rings again, Feige and his staff will need to come up with a different background (mytholigical perhaps) to support the adaption of the Mandarin's ten magic rings in a realistic and flawless way, whether the source will be Makulonian, Asgardian, or off from scratch will be determined by him on their perspectives.
For the real Mandarin's portrayal to be done perfectly in the fourth film, he will need to be played by a male asian actor who is 5.4 to 6 feet tall at age 46 to 60 and the best actors for the real Mandarin are Will Yun Lee (Red Dawn) , Byung Hun Lee (GI Joe Retaliation) , Hiroyuki Sanada (Rush Hour 3, Twilight Samurai) or Tohoru Masamune (Teenage Mutant Ninja Turtles)
To make the character's depiction more decent and his battle against Iron Man with his power rings more realistic, he will need to blend in with the more civilized world of the Marvel Cinematic Universe and with magic enhanced armor forged from his rings
Whether the real Mandarin of the Ten Rings is an immortal legendary warrior king that Jackson Norris mentioned to Trevor or the second person to inherit the name and the rings will be determined by Marvel Studios and Kevin Feige but one thing is for certain is that he is very much likely a real live person just like Tony Stark.
If the people of Marvel Studios are still intending to base this film on major events that have occured in the real world , the best one for the real Mandarin to fit in along with all 10 of his magic rings in hand is during the drug busting events of the 80's located between North and South America where he tries to defend the village he had currently resided in from foreign invaders but fails to save everyone dear to him which leads him into forming the Ten Rings Terrorist organization and opposing HYDRA along with those who were corrupted by Arnim Zola's parasite.
Other supervillains like the Ghost, Killer Shrike and Sunset Bain are expected to be working for and with the Mandarin in the fourth Iron Man film if the movie is still to have its plot James Bond like and whatever the Mandarin's ultimate plan will be in this movie, it will be a lot bigger than those from the first three Iron Man films
What ever the actual Mandarin's primary goal is in the Marvel Cinematic Universe as well as his reasons for assembling his terrorist organization, it will be serious
Make sure that it's Iron Man that defeats the actual Mandarin of the Ten Rings and not Pepper, Rhodey or anyone else
And Most important reason overall is that with the Marvel Cinematic Universe set to last longer than we thought before the 2028 end date or pass through announcement, I am sure that none of us desparate fans are gonna tolerate waiting for more than 2 decades to see Iron Man take on the Mandarin that we all know and like so much after the swindle that Shane Black made the studio pull off in Iron Man 3 that caused a huge setback even if most jerks who were careless about it don't understand it one bit.
Now while the film is still yet to have plans be announced, we should use this time to contact Kevin Feige and Marvel Studios to have the real Mandarin set for Iron Man 4 and for the character to be done precisely from all the information regarding him in this article as well as other villains they should include in the 4th film as well. And while you're all at it, be sure to get Robert Downey Jr. to stop messing around and just agree to return for Iron Man 4 because I know that because of how he looks exactly like Tony Stark from the comics otherwise he will be replaced with someone else with the character's looks like Mark Wahlberg and just to let all of you know, with or without RDJ the next Iron Man films along with the characters other MCU film involvment will still happen. Now lets get a move on and inform Marvel Studios right away