The SH Figuarts Marvel display at the Tokyo Comic Con included this awesome Iron-Man Hall of Armour display.
The display is made up of released Iron-Man figures, and a number that up until the show had not been seen before as prototypes or early samples. They were all listed as "display only" so there is no definitive release date - if they get released at all - and we should bear in mind that the majority of Iron-Man armours are an exclusive release.
Mark 1 Iron-Man, Mark 17 Heartbreaker & Mark 20 Python
Mark 21 Midas, Mark 22 Hot Rod (already announced and confirmed), Mark 33 Silver Centurion and Mark 40 (Shotgun)