Re: Ant-Man: Info, Pics, Rumors, Casting and Details till release
Newsarama did an article where they shared some theories on who could be the villain(s) of Ant-Man.
This is just pure speculation with no new info.
Their ideas are:
The founder of a tech corporation who has the same heart defect as Cassie.
They say a little knowledge is a dangerous thing, but it is not one half so bad as a lot of ignorance. - Terry Pratchett, Equal Rites