I heard about the idea of a Cloak & Dagger TV series about a year ago. I think they released the trailer a bit earlier since the series is set to debut some time in 2018. The Series will be on the Freeform network formerly known as ABC family. The characters that play Cloak & Dagger are on the younger side kind of how spider man is young when he appeared in the MCU. Check it out.
https://www.youtube.com/watch?v=E5hrFVQiGyk