Re: Wanda or Vision, who should turn up first?
Wanda and Vision can be done without the mutant element. They do have comic book connections to the High Evolutionary. Use him to explain their powers.
Dream MCU phase 3:
2016: Thor: Ragnarok, Doctor Strange
2017: Captain America: Secret Empire, Black Panther
2018: The Incredible Hulk: Rise of the Leader, Guardians of the Galaxy: War of Kings
2019: The Inhumans, Avengers: Thanos Imperative