As announced at Paris Comic Con, Hasbro have shared the promotional images for their 2020 planned releases of the Winter Soldier and the Demogoblin. Both figures are listed as a Spring 2020 release.
We know Demogoblin will sit in the 2020 Spider-Man wave as the build-a-figure. The wave will also include the two Spider-Man PS4 figures, Shang-Chi, Superior Octopus, White Rabbit and Vulture. With confirmation of the BAF for this wave we also get an image of the final wave which confirms that Vulture will have two head options - Toomes and an alternative Drago head.
Winter Soldier is a likely bet for a Black Widow wave in Spring which will be a combination, as usual, of MCU figures from her solo movie and comic book figures like Winter Soldier.
MARVEL LEGENDS SERIES 6-INCH WINTER SOLDIER Figure (HASBRO/Approx. Retail Price: $19.99/Available: Spring 2020)
MARVEL SPIDER-MAN LEGENDS SERIES 6-INCH DEMOGOBLIN Build-A-Figure (HASBRO/Available: Spring 2020)