I saw this morning that Vision, Ant Man, Black Panther and Baloo are available for pre-order on Amazon.com
All 4 figures say they will be released on March 15th. They are $13.99 each unless you're Prime they are 20% off which makes them $11.19 each.
Just sharing for anyone interested.
Edit: Black Suit Spider Man is also available as well as Boba Fett too.